Regenerate lexer source code

Revise the manual procedure in the `*Lexer.in.l` files.  Some of our
post-processing steps are no longer necessary with the current set of
supported compilers.  Some steps changed with newer versions of flex.

Then regenerate all lexers with flex version 2.6.1.

CTestCustom.cmake.in

@@ -83,6 +83,10 @@ list(APPEND CTEST_CUSTOM_WARNING_EXCEPTION
   "warning: Value stored to 'yytoken' is never read"
   "index_encoder.c.241.2. warning: Value stored to .out_start. is never read"
   "index.c.*warning: Access to field.*results in a dereference of a null pointer.*loaded from variable.*"
+  "cmCommandArgumentLexer.cxx:[0-9]+:[0-9]+: warning: Call to 'realloc' has an allocation size of 0 bytes"
+  "cmDependsJavaLexer.cxx:[0-9]+:[0-9]+: warning: Call to 'realloc' has an allocation size of 0 bytes"
+  "cmExprLexer.cxx:[0-9]+:[0-9]+: warning: Call to 'realloc' has an allocation size of 0 bytes"
+  "cmListFileLexer.c:[0-9]+:[0-9]+: warning: Call to 'realloc' has an allocation size of 0 bytes"
   "cmFortranLexer.cxx:[0-9]+:[0-9]+: warning: Call to 'realloc' has an allocation size of 0 bytes"
   "testProcess.*warning: Dereference of null pointer .loaded from variable .invalidAddress.."
   "liblzma/simple/x86.c:[0-9]+:[0-9]+: warning: The result of the '<<' expression is undefined"

Source/.gitattributes

@@ -1,4 +1,10 @@
 # Preserve indentation style in generated code.
-cmListFileLexer.c       whitespace=-tab-in-indent,-indent-with-non-tab
-cmFortranLexer.cxx      whitespace=-tab-in-indent,-indent-with-non-tab
-cmFortranLexer.h        whitespace=-tab-in-indent,-indent-with-non-tab
+cmCommandArgumentLexer.cxx      whitespace=-tab-in-indent,-indent-with-non-tab
+cmCommandArgumentLexer.h        whitespace=-tab-in-indent,-indent-with-non-tab
+cmDependsJavaLexer.cxx          whitespace=-tab-in-indent,-indent-with-non-tab
+cmDependsJavaLexer.h            whitespace=-tab-in-indent,-indent-with-non-tab
+cmExprLexer.cxx                 whitespace=-tab-in-indent,-indent-with-non-tab
+cmExprLexer.h                   whitespace=-tab-in-indent,-indent-with-non-tab
+cmFortranLexer.cxx              whitespace=-tab-in-indent,-indent-with-non-tab
+cmFortranLexer.h                whitespace=-tab-in-indent,-indent-with-non-tab
+cmListFileLexer.c               whitespace=-tab-in-indent,-indent-with-non-tab

Source/cmCommandArgumentLexer.h

@@ -1,17 +1,20 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef cmCommandArgument_yyHEADER_H
 #define cmCommandArgument_yyHEADER_H 1
 #define cmCommandArgument_yyIN_HEADER 1
 
+#line 6 "cmCommandArgumentLexer.h"
+
+#line 8 "cmCommandArgumentLexer.h"
+
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
 
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
-#define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 35
+#define YY_FLEX_MINOR_VERSION 6
+#define YY_FLEX_SUBMINOR_VERSION 1
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -90,25 +93,13 @@ typedef unsigned int flex_uint32_t;
 
 #endif /* ! FLEXINT_H */
 
-#ifdef __cplusplus
-
-/* The "const" storage-class-modifier is valid. */
-#define YY_USE_CONST
-
-#else   /* ! __cplusplus */
-
-/* C99 requires __STDC__ to be defined as 1. */
-#if defined (__STDC__)
-
-#define YY_USE_CONST
-
-#endif  /* defined (__STDC__) */
-#endif  /* ! __cplusplus */
-
-#ifdef YY_USE_CONST
+/* TODO: this is always defined, so inline it */
 #define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
 #else
-#define yyconst
+#define yynoreturn
 #endif
 
 /* An opaque pointer. */
@@ -130,7 +121,15 @@ typedef void* yyscan_t;
 
 /* Size of default input buffer. */
 #ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
 #define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
 #endif
 
 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
@@ -146,52 +145,52 @@ typedef size_t yy_size_t;
 #ifndef YY_STRUCT_YY_BUFFER_STATE
 #define YY_STRUCT_YY_BUFFER_STATE
 struct yy_buffer_state
-        {
-        FILE *yy_input_file;
-
-        char *yy_ch_buf;                /* input buffer */
-        char *yy_buf_pos;               /* current position in input buffer */
-
-        /* Size of input buffer in bytes, not including room for EOB
-         * characters.
-         */
-        yy_size_t yy_buf_size;
-
-        /* Number of characters read into yy_ch_buf, not including EOB
-         * characters.
-         */
-        int yy_n_chars;
-
-        /* Whether we "own" the buffer - i.e., we know we created it,
-         * and can realloc() it to grow it, and should free() it to
-         * delete it.
-         */
-        int yy_is_our_buffer;
-
-        /* Whether this is an "interactive" input source; if so, and
-         * if we're using stdio for input, then we want to use getc()
-         * instead of fread(), to make sure we stop fetching input after
-         * each newline.
-         */
-        int yy_is_interactive;
-
-        /* Whether we're considered to be at the beginning of a line.
-         * If so, '^' rules will be active on the next match, otherwise
-         * not.
-         */
-        int yy_at_bol;
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	int yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
 
     int yy_bs_lineno; /**< The line count. */
     int yy_bs_column; /**< The column count. */
 
-        /* Whether to try to fill the input buffer when we reach the
-         * end of it.
-         */
-        int yy_fill_buffer;
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
 
-        int yy_buffer_status;
+	int yy_buffer_status;
 
-        };
+	};
 #endif /* !YY_STRUCT_YY_BUFFER_STATE */
 
 void cmCommandArgument_yyrestart (FILE *input_file ,yyscan_t yyscanner );
@@ -212,7 +211,7 @@ void cmCommandArgument_yyfree (void * ,yyscan_t yyscanner );
 
 /* Begin user sect3 */
 
-#define cmCommandArgument_yywrap(n) 1
+#define cmCommandArgument_yywrap(yyscanner) (/*CONSTCOND*/1)
 #define YY_SKIP_YYWRAP
 
 #define yytext_ptr yytext_r
@@ -247,19 +246,23 @@ void cmCommandArgument_yyset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscann
 
 FILE *cmCommandArgument_yyget_in (yyscan_t yyscanner );
 
-void cmCommandArgument_yyset_in  (FILE * in_str ,yyscan_t yyscanner );
+void cmCommandArgument_yyset_in  (FILE * _in_str ,yyscan_t yyscanner );
 
 FILE *cmCommandArgument_yyget_out (yyscan_t yyscanner );
 
-void cmCommandArgument_yyset_out  (FILE * out_str ,yyscan_t yyscanner );
+void cmCommandArgument_yyset_out  (FILE * _out_str ,yyscan_t yyscanner );
 
-int cmCommandArgument_yyget_leng (yyscan_t yyscanner );
+			int cmCommandArgument_yyget_leng (yyscan_t yyscanner );
 
 char *cmCommandArgument_yyget_text (yyscan_t yyscanner );
 
 int cmCommandArgument_yyget_lineno (yyscan_t yyscanner );
 
-void cmCommandArgument_yyset_lineno (int line_number ,yyscan_t yyscanner );
+void cmCommandArgument_yyset_lineno (int _line_number ,yyscan_t yyscanner );
+
+int cmCommandArgument_yyget_column  (yyscan_t yyscanner );
+
+void cmCommandArgument_yyset_column (int _column_no ,yyscan_t yyscanner );
 
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
@@ -287,7 +290,12 @@ static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
 #define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
 #endif
 
 /* Number of entries by which start-condition stack grows. */
@@ -320,5 +328,9 @@ extern int cmCommandArgument_yylex (yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
+#line 127 "cmCommandArgumentLexer.in.l"
+
+
+#line 335 "cmCommandArgumentLexer.h"
 #undef cmCommandArgument_yyIN_HEADER
 #endif /* cmCommandArgument_yyHEADER_H */

Source/cmCommandArgumentLexer.in.l

@@ -3,32 +3,21 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 /*
 
-This file must be translated to C and modified to build everywhere.
+This file must be translated to C++ and modified to build everywhere.
 
-Run flex like this:
+Run flex >= 2.6 like this:
 
-  flex --prefix=cmCommandArgument_yy --header-file=cmCommandArgumentLexer.h -ocmCommandArgumentLexer.cxx cmCommandArgumentLexer.in.l
+  flex --nounistd -DFLEXINT_H --prefix=cmCommandArgument_yy --header-file=cmCommandArgumentLexer.h -ocmCommandArgumentLexer.cxx cmCommandArgumentLexer.in.l
 
 Modify cmCommandArgumentLexer.cxx:
-  - add #include "cmStandardIncludes.h" to top of file
-  - put header block at top of file
-  - remove TABs
-  - remove use of the 'register' storage class specifier
-  - remove "yyscanner" argument from these methods:
-      yy_fatal_error, cmCommandArgument_yyalloc, cmCommandArgument_yyrealloc, cmCommandArgument_yyfree
-  - remove all YY_BREAK lines occurring right after return statements
-  - change while ( 1 ) to for(;;)
-  - add "return 0;" to end of cmCommandArgument_yylex
-
-Modify cmCommandArgumentLexer.h:
-  - remove TABs
-  - remove the yy_init_globals function
-  - remove the block that includes unistd.h
-  - remove #line directives (avoids bogus warning on old Sun)
+  - remove trailing whitespace: sed -i 's/\s*$//' cmCommandArgumentLexer.h cmCommandArgumentLexer.cxx
+  - remove blank lines at end of file
+  - #include "cmStandardLexer.h" at the top
+  - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
 
 #include "cmCommandArgumentParserHelper.h"
 
@@ -142,12 +131,9 @@ void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes)
 {
   /* Hack into the internal flex-generated scanner to set the state.  */
   struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
-  if(noEscapes)
-    {
+  if(noEscapes) {
     BEGIN(NOESCAPES);
-    }
-  else
-    {
+  } else {
     BEGIN(ESCAPES);
-    }
+  }
 }

Source/cmDependsJavaLexer.h

@@ -1,17 +1,20 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef cmDependsJava_yyHEADER_H
 #define cmDependsJava_yyHEADER_H 1
 #define cmDependsJava_yyIN_HEADER 1
 
+#line 6 "cmDependsJavaLexer.h"
+
+#line 8 "cmDependsJavaLexer.h"
+
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
 
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
-#define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 31
+#define YY_FLEX_MINOR_VERSION 6
+#define YY_FLEX_SUBMINOR_VERSION 1
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -24,10 +27,6 @@
 #include <errno.h>
 #include <stdlib.h>
 
-#if defined(__BEOS__) || defined(__HAIKU__)
-#include <unistd.h>   /* prevents a conflict with a #define later on... */
-#endif
-
 /* end standard C headers. */
 
 /* flex integer type definitions */
@@ -37,7 +36,15 @@
 
 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
 
-#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
 #include <inttypes.h>
 typedef int8_t flex_int8_t;
 typedef uint8_t flex_uint8_t;
@@ -52,7 +59,6 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t;
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
-#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -83,26 +89,17 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
-#endif /* ! FLEXINT_H */
-
-#ifdef __cplusplus
-
-/* The "const" storage-class-modifier is valid. */
-#define YY_USE_CONST
-
-#else  /* ! __cplusplus */
-
-#if __STDC__
-
-#define YY_USE_CONST
+#endif /* ! C99 */
 
-#endif  /* __STDC__ */
-#endif  /* ! __cplusplus */
+#endif /* ! FLEXINT_H */
 
-#ifdef YY_USE_CONST
+/* TODO: this is always defined, so inline it */
 #define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
 #else
-#define yyconst
+#define yynoreturn
 #endif
 
 /* An opaque pointer. */
@@ -122,91 +119,91 @@ typedef void* yyscan_t;
 #define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
 #define yy_flex_debug yyg->yy_flex_debug_r
 
-int cmDependsJava_yylex_init (yyscan_t* scanner);
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
+#define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
+#endif
 
 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
 #define YY_TYPEDEF_YY_BUFFER_STATE
 typedef struct yy_buffer_state *YY_BUFFER_STATE;
 #endif
 
-/* The following is because we cannot portably get our hands on size_t
- * (without autoconf's help, which isn't available because we want
- * flex-generated scanners to compile on their own).
- */
-
 #ifndef YY_TYPEDEF_YY_SIZE_T
 #define YY_TYPEDEF_YY_SIZE_T
-typedef unsigned int yy_size_t;
+typedef size_t yy_size_t;
 #endif
 
 #ifndef YY_STRUCT_YY_BUFFER_STATE
 #define YY_STRUCT_YY_BUFFER_STATE
 struct yy_buffer_state
-  {
-  FILE *yy_input_file;
-
-  char *yy_ch_buf;    /* input buffer */
-  char *yy_buf_pos;    /* current position in input buffer */
-
-  /* Size of input buffer in bytes, not including room for EOB
-   * characters.
-   */
-  yy_size_t yy_buf_size;
-
-  /* Number of characters read into yy_ch_buf, not including EOB
-   * characters.
-   */
-  int yy_n_chars;
-
-  /* Whether we "own" the buffer - i.e., we know we created it,
-   * and can realloc() it to grow it, and should free() it to
-   * delete it.
-   */
-  int yy_is_our_buffer;
-
-  /* Whether this is an "interactive" input source; if so, and
-   * if we're using stdio for input, then we want to use getc()
-   * instead of fread(), to make sure we stop fetching input after
-   * each newline.
-   */
-  int yy_is_interactive;
-
-  /* Whether we're considered to be at the beginning of a line.
-   * If so, '^' rules will be active on the next match, otherwise
-   * not.
-   */
-  int yy_at_bol;
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	int yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
 
     int yy_bs_lineno; /**< The line count. */
     int yy_bs_column; /**< The column count. */
 
-  /* Whether to try to fill the input buffer when we reach the
-   * end of it.
-   */
-  int yy_fill_buffer;
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
 
-  int yy_buffer_status;
+	int yy_buffer_status;
 
-  };
+	};
 #endif /* !YY_STRUCT_YY_BUFFER_STATE */
 
 void cmDependsJava_yyrestart (FILE *input_file ,yyscan_t yyscanner );
-void cmDependsJava_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,
-                                        yyscan_t yyscanner );
-YY_BUFFER_STATE cmDependsJava_yy_create_buffer (FILE *file,int size ,
-                                                yyscan_t yyscanner );
+void cmDependsJava_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmDependsJava_yy_create_buffer (FILE *file,int size ,yyscan_t yyscanner );
 void cmDependsJava_yy_delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
 void cmDependsJava_yy_flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
-void cmDependsJava_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,
-                                        yyscan_t yyscanner );
+void cmDependsJava_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
 void cmDependsJava_yypop_buffer_state (yyscan_t yyscanner );
 
-YY_BUFFER_STATE cmDependsJava_yy_scan_buffer (char *base,yy_size_t size ,
-                                              yyscan_t yyscanner );
-YY_BUFFER_STATE cmDependsJava_yy_scan_string (yyconst char *yy_str ,
-                                              yyscan_t yyscanner );
-YY_BUFFER_STATE cmDependsJava_yy_scan_bytes (yyconst char *bytes,int len ,
-                                             yyscan_t yyscanner );
+YY_BUFFER_STATE cmDependsJava_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmDependsJava_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmDependsJava_yy_scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
 
 void *cmDependsJava_yyalloc (yy_size_t ,yyscan_t yyscanner );
 void *cmDependsJava_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner );
@@ -214,7 +211,7 @@ void cmDependsJava_yyfree (void * ,yyscan_t yyscanner );
 
 /* Begin user sect3 */
 
-#define cmDependsJava_yywrap(n) 1
+#define cmDependsJava_yywrap(yyscanner) (/*CONSTCOND*/1)
 #define YY_SKIP_YYWRAP
 
 #define yytext_ptr yytext_r
@@ -230,6 +227,10 @@ void cmDependsJava_yyfree (void * ,yyscan_t yyscanner );
 #define YY_EXTRA_TYPE void *
 #endif
 
+int cmDependsJava_yylex_init (yyscan_t* scanner);
+
+int cmDependsJava_yylex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner);
+
 /* Accessor methods to globals.
    These are made visible to non-reentrant scanners for convenience. */
 
@@ -241,24 +242,27 @@ void cmDependsJava_yyset_debug (int debug_flag ,yyscan_t yyscanner );
 
 YY_EXTRA_TYPE cmDependsJava_yyget_extra (yyscan_t yyscanner );
 
-void cmDependsJava_yyset_extra (YY_EXTRA_TYPE user_defined ,
-                                yyscan_t yyscanner );
+void cmDependsJava_yyset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner );
 
 FILE *cmDependsJava_yyget_in (yyscan_t yyscanner );
 
-void cmDependsJava_yyset_in  (FILE * in_str ,yyscan_t yyscanner );
+void cmDependsJava_yyset_in  (FILE * _in_str ,yyscan_t yyscanner );
 
 FILE *cmDependsJava_yyget_out (yyscan_t yyscanner );
 
-void cmDependsJava_yyset_out  (FILE * out_str ,yyscan_t yyscanner );
+void cmDependsJava_yyset_out  (FILE * _out_str ,yyscan_t yyscanner );
 
-int cmDependsJava_yyget_leng (yyscan_t yyscanner );
+			int cmDependsJava_yyget_leng (yyscan_t yyscanner );
 
 char *cmDependsJava_yyget_text (yyscan_t yyscanner );
 
 int cmDependsJava_yyget_lineno (yyscan_t yyscanner );
 
-void cmDependsJava_yyset_lineno (int line_number ,yyscan_t yyscanner );
+void cmDependsJava_yyset_lineno (int _line_number ,yyscan_t yyscanner );
+
+int cmDependsJava_yyget_column  (yyscan_t yyscanner );
+
+void cmDependsJava_yyset_column (int _column_no ,yyscan_t yyscanner );
 
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
@@ -286,7 +290,12 @@ static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
 #define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
 #endif
 
 /* Number of entries by which start-condition stack grows. */
@@ -305,15 +314,13 @@ extern int cmDependsJava_yylex (yyscan_t yyscanner);
 #define YY_DECL int cmDependsJava_yylex (yyscan_t yyscanner)
 #endif /* !YY_DECL */
 
-/* yy_get_previous_state - get the state just before the
-   EOB char was reached */
+/* yy_get_previous_state - get the state just before the EOB char was reached */
 
 #undef YY_NEW_FILE
 #undef YY_FLUSH_BUFFER
 #undef yy_set_bol
 #undef yy_new_buffer
 #undef yy_set_interactive
-#undef yytext_ptr
 #undef YY_DO_BEFORE_ACTION
 
 #ifdef YY_DECL_IS_OURS
@@ -321,5 +328,9 @@ extern int cmDependsJava_yylex (yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
+#line 174 "cmDependsJavaLexer.in.l"
+
+
+#line 335 "cmDependsJavaLexer.h"
 #undef cmDependsJava_yyIN_HEADER
 #endif /* cmDependsJava_yyHEADER_H */

Source/cmDependsJavaLexer.in.l

@@ -3,29 +3,23 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 /*
 
-This file must be translated to C and modified to build everywhere.
+This file must be translated to C++ and modified to build everywhere.
 
-Run flex like this:
+Run flex >= 2.6 like this:
 
-  flex --prefix=cmDependsJava_yy --header-file=cmDependsJavaLexer.h -ocmDependsJavaLexer.cxx cmDependsJavaLexer.in.l
+  flex --nounistd -DFLEXINT_H --prefix=cmDependsJava_yy --header-file=cmDependsJavaLexer.h -ocmDependsJavaLexer.cxx cmDependsJavaLexer.in.l
 
-Modify cmDependsJavaLexer.c:
-  - remove TABs
-  - remove use of the 'register' storage class specifier
-  - remove "yyscanner" argument from these methods:
-      yy_fatal_error, cmDependsJava_yyalloc, cmDependsJava_yyrealloc, cmDependsJava_yyfree
-  - remove all YY_BREAK lines occurring right after return statements
-  - change while ( 1 ) to for(;;)
-
-Modify cmDependsJavaLexer.h:
-  - remove TABs
-  - remove the yy_init_globals function
-  - remove the block that includes unistd.h
-  - remove #line directives (avoids bogus warning on old Sun)
+Modify cmDependsJavaLexer.cxx:
+  - remove trailing whitespace: sed -i 's/\s*$//' cmDependsJavaLexer.h cmDependsJavaLexer.cxx
+  - remove blank lines at end of file
+  - #include "cmStandardLexer.h" at the top
+  - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
+
+#include <iostream>
 
 #include "cmDependsJavaParserHelper.h"
 
@@ -170,7 +164,7 @@ null { PRIMITIVE; return jp_NULLLITERAL; }
 
 \/\/.*\n { }
 [ \f\t\n\r] { }
-. 	{
+. {
   std::cerr << "Unknown character: " << yytext[0]
     << " (" << (int)yytext[0] << ")" << std::endl;
   yyextra->Error("Unknown character");

Source/cmExprLexer.h

@@ -1,21 +1,20 @@
-/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
-   file Copyright.txt or https://cmake.org/licensing for details.  */
 #ifndef cmExpr_yyHEADER_H
 #define cmExpr_yyHEADER_H 1
 #define cmExpr_yyIN_HEADER 1
 
+#line 6 "cmExprLexer.h"
 
+#line 8 "cmExprLexer.h"
 
-
-
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
 
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
-#define YY_FLEX_MINOR_VERSION 5
-#define YY_FLEX_SUBMINOR_VERSION 31
+#define YY_FLEX_MINOR_VERSION 6
+#define YY_FLEX_SUBMINOR_VERSION 1
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -37,7 +36,15 @@
 
 /* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
 
-#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
+#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+
+/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
+ * if you want the limit (max/min) macros for int types.
+ */
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS 1
+#endif
+
 #include <inttypes.h>
 typedef int8_t flex_int8_t;
 typedef uint8_t flex_uint8_t;
@@ -52,7 +59,6 @@ typedef int flex_int32_t;
 typedef unsigned char flex_uint8_t;
 typedef unsigned short int flex_uint16_t;
 typedef unsigned int flex_uint32_t;
-#endif /* ! C99 */
 
 /* Limits of integral types. */
 #ifndef INT8_MIN
@@ -83,26 +89,17 @@ typedef unsigned int flex_uint32_t;
 #define UINT32_MAX             (4294967295U)
 #endif
 
-#endif /* ! FLEXINT_H */
-
-#ifdef __cplusplus
-
-/* The "const" storage-class-modifier is valid. */
-#define YY_USE_CONST
-
-#else  /* ! __cplusplus */
-
-#if __STDC__
-
-#define YY_USE_CONST
+#endif /* ! C99 */
 
-#endif  /* __STDC__ */
-#endif  /* ! __cplusplus */
+#endif /* ! FLEXINT_H */
 
-#ifdef YY_USE_CONST
+/* TODO: this is always defined, so inline it */
 #define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
 #else
-#define yyconst
+#define yynoreturn
 #endif
 
 /* An opaque pointer. */
@@ -122,91 +119,91 @@ typedef void* yyscan_t;
 #define yycolumn (YY_CURRENT_BUFFER_LVALUE->yy_bs_column)
 #define yy_flex_debug yyg->yy_flex_debug_r
 
-int cmExpr_yylex_init (yyscan_t* scanner);
+/* Size of default input buffer. */
+#ifndef YY_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k.
+ * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
+ * Ditto for the __ia64__ case accordingly.
+ */
+#define YY_BUF_SIZE 32768
+#else
+#define YY_BUF_SIZE 16384
+#endif /* __ia64__ */
+#endif
 
 #ifndef YY_TYPEDEF_YY_BUFFER_STATE
 #define YY_TYPEDEF_YY_BUFFER_STATE
 typedef struct yy_buffer_state *YY_BUFFER_STATE;
 #endif
 
-/* The following is because we cannot portably get our hands on size_t
- * (without autoconf's help, which isn't available because we want
- * flex-generated scanners to compile on their own).
- */
-
 #ifndef YY_TYPEDEF_YY_SIZE_T
 #define YY_TYPEDEF_YY_SIZE_T
-typedef unsigned int yy_size_t;
+typedef size_t yy_size_t;
 #endif
 
 #ifndef YY_STRUCT_YY_BUFFER_STATE
 #define YY_STRUCT_YY_BUFFER_STATE
 struct yy_buffer_state
-  {
-  FILE *yy_input_file;
-
-  char *yy_ch_buf;    /* input buffer */
-  char *yy_buf_pos;    /* current position in input buffer */
-
-  /* Size of input buffer in bytes, not including room for EOB
-   * characters.
-   */
-  yy_size_t yy_buf_size;
-
-  /* Number of characters read into yy_ch_buf, not including EOB
-   * characters.
-   */
-  int yy_n_chars;
-
-  /* Whether we "own" the buffer - i.e., we know we created it,
-   * and can realloc() it to grow it, and should free() it to
-   * delete it.
-   */
-  int yy_is_our_buffer;
-
-  /* Whether this is an "interactive" input source; if so, and
-   * if we're using stdio for input, then we want to use getc()
-   * instead of fread(), to make sure we stop fetching input after
-   * each newline.
-   */
-  int yy_is_interactive;
-
-  /* Whether we're considered to be at the beginning of a line.
-   * If so, '^' rules will be active on the next match, otherwise
-   * not.
-   */
-  int yy_at_bol;
+	{
+	FILE *yy_input_file;
+
+	char *yy_ch_buf;		/* input buffer */
+	char *yy_buf_pos;		/* current position in input buffer */
+
+	/* Size of input buffer in bytes, not including room for EOB
+	 * characters.
+	 */
+	int yy_buf_size;
+
+	/* Number of characters read into yy_ch_buf, not including EOB
+	 * characters.
+	 */
+	int yy_n_chars;
+
+	/* Whether we "own" the buffer - i.e., we know we created it,
+	 * and can realloc() it to grow it, and should free() it to
+	 * delete it.
+	 */
+	int yy_is_our_buffer;
+
+	/* Whether this is an "interactive" input source; if so, and
+	 * if we're using stdio for input, then we want to use getc()
+	 * instead of fread(), to make sure we stop fetching input after
+	 * each newline.
+	 */
+	int yy_is_interactive;
+
+	/* Whether we're considered to be at the beginning of a line.
+	 * If so, '^' rules will be active on the next match, otherwise
+	 * not.
+	 */
+	int yy_at_bol;
 
     int yy_bs_lineno; /**< The line count. */
     int yy_bs_column; /**< The column count. */
 
-  /* Whether to try to fill the input buffer when we reach the
-   * end of it.
-   */
-  int yy_fill_buffer;
+	/* Whether to try to fill the input buffer when we reach the
+	 * end of it.
+	 */
+	int yy_fill_buffer;
 
-  int yy_buffer_status;
+	int yy_buffer_status;
 
-  };
+	};
 #endif /* !YY_STRUCT_YY_BUFFER_STATE */
 
 void cmExpr_yyrestart (FILE *input_file ,yyscan_t yyscanner );
-void cmExpr_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,
-                                 yyscan_t yyscanner );
-YY_BUFFER_STATE cmExpr_yy_create_buffer (FILE *file,int size ,
-                                         yyscan_t yyscanner );
+void cmExpr_yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmExpr_yy_create_buffer (FILE *file,int size ,yyscan_t yyscanner );
 void cmExpr_yy_delete_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
 void cmExpr_yy_flush_buffer (YY_BUFFER_STATE b ,yyscan_t yyscanner );
-void cmExpr_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,
-                                 yyscan_t yyscanner );
+void cmExpr_yypush_buffer_state (YY_BUFFER_STATE new_buffer ,yyscan_t yyscanner );
 void cmExpr_yypop_buffer_state (yyscan_t yyscanner );
 
-YY_BUFFER_STATE cmExpr_yy_scan_buffer (char *base,yy_size_t size ,
-                                       yyscan_t yyscanner );
-YY_BUFFER_STATE cmExpr_yy_scan_string (yyconst char *yy_str ,
-                                       yyscan_t yyscanner );
-YY_BUFFER_STATE cmExpr_yy_scan_bytes (yyconst char *bytes,int len ,
-                                      yyscan_t yyscanner );
+YY_BUFFER_STATE cmExpr_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmExpr_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmExpr_yy_scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
 
 void *cmExpr_yyalloc (yy_size_t ,yyscan_t yyscanner );
 void *cmExpr_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner );
@@ -214,7 +211,7 @@ void cmExpr_yyfree (void * ,yyscan_t yyscanner );
 
 /* Begin user sect3 */
 
-#define cmExpr_yywrap(n) 1
+#define cmExpr_yywrap(yyscanner) (/*CONSTCOND*/1)
 #define YY_SKIP_YYWRAP
 
 #define yytext_ptr yytext_r
@@ -228,6 +225,10 @@ void cmExpr_yyfree (void * ,yyscan_t yyscanner );
 #define YY_EXTRA_TYPE void *
 #endif
 
+int cmExpr_yylex_init (yyscan_t* scanner);
+
+int cmExpr_yylex_init_extra (YY_EXTRA_TYPE user_defined,yyscan_t* scanner);
+
 /* Accessor methods to globals.
    These are made visible to non-reentrant scanners for convenience. */
 
@@ -243,19 +244,23 @@ void cmExpr_yyset_extra (YY_EXTRA_TYPE user_defined ,yyscan_t yyscanner );
 
 FILE *cmExpr_yyget_in (yyscan_t yyscanner );
 
-void cmExpr_yyset_in  (FILE * in_str ,yyscan_t yyscanner );
+void cmExpr_yyset_in  (FILE * _in_str ,yyscan_t yyscanner );
 
 FILE *cmExpr_yyget_out (yyscan_t yyscanner );
 
-void cmExpr_yyset_out  (FILE * out_str ,yyscan_t yyscanner );
+void cmExpr_yyset_out  (FILE * _out_str ,yyscan_t yyscanner );
 
-int cmExpr_yyget_leng (yyscan_t yyscanner );
+			int cmExpr_yyget_leng (yyscan_t yyscanner );
 
 char *cmExpr_yyget_text (yyscan_t yyscanner );
 
 int cmExpr_yyget_lineno (yyscan_t yyscanner );
 
-void cmExpr_yyset_lineno (int line_number ,yyscan_t yyscanner );
+void cmExpr_yyset_lineno (int _line_number ,yyscan_t yyscanner );
+
+int cmExpr_yyget_column  (yyscan_t yyscanner );
+
+void cmExpr_yyset_column (int _column_no ,yyscan_t yyscanner );
 
 /* Macros after this point can all be overridden by user definitions in
  * section 1.
@@ -283,7 +288,12 @@ static int yy_flex_strlen (yyconst char * ,yyscan_t yyscanner);
 
 /* Amount of stuff to slurp up with each read. */
 #ifndef YY_READ_BUF_SIZE
+#ifdef __ia64__
+/* On IA-64, the buffer size is 16k, not 8k */
+#define YY_READ_BUF_SIZE 16384
+#else
 #define YY_READ_BUF_SIZE 8192
+#endif /* __ia64__ */
 #endif
 
 /* Number of entries by which start-condition stack grows. */
@@ -302,15 +312,13 @@ extern int cmExpr_yylex (yyscan_t yyscanner);
 #define YY_DECL int cmExpr_yylex (yyscan_t yyscanner)
 #endif /* !YY_DECL */
 
-/* yy_get_previous_state - get the state just before the EOB char was
-   reached */
+/* yy_get_previous_state - get the state just before the EOB char was reached */
 
 #undef YY_NEW_FILE
 #undef YY_FLUSH_BUFFER
 #undef yy_set_bol
 #undef yy_new_buffer
 #undef yy_set_interactive
-#undef yytext_ptr
 #undef YY_DO_BEFORE_ACTION
 
 #ifdef YY_DECL_IS_OURS
@@ -318,8 +326,9 @@ extern int cmExpr_yylex (yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
+#line 57 "cmExprLexer.in.l"
 
 
-
+#line 333 "cmExprLexer.h"
 #undef cmExpr_yyIN_HEADER
 #endif /* cmExpr_yyHEADER_H */

Source/cmExprLexer.in.l

@@ -3,29 +3,21 @@
    file Copyright.txt or https://cmake.org/licensing for details.  */
 /*
 
-This file must be translated to C and modified to build everywhere.
+This file must be translated to C++ and modified to build everywhere.
 
-Run flex like this:
+Run flex >= 2.6 like this:
 
-  flex --prefix=cmExpr_yy --header-file=cmExprLexer.h -ocmExprLexer.cxx cmExprLexer.in.l
+  flex --nounistd -DFLEXINT_H --prefix=cmExpr_yy --header-file=cmExprLexer.h -ocmExprLexer.cxx cmExprLexer.in.l
 
 Modify cmExprLexer.cxx:
-  - remove TABs
-  - remove use of the 'register' storage class specifier
-  - remove "yyscanner" argument from these methods:
-      yy_fatal_error, cmExpr_yyalloc, cmExpr_yyrealloc, cmExpr_yyfree
-  - remove all YY_BREAK lines occurring right after return statements
-  - change while ( 1 ) to for(;;)
-
-Modify cmExprLexer.h:
-  - remove TABs
-  - remove the yy_init_globals function
-  - remove the block that includes unistd.h
-  - remove #line directives (avoids bogus warning on old Sun)
+  - remove trailing whitespace: sed -i 's/\s*$//' cmExprLexer.h cmExprLexer.cxx
+  - remove blank lines at end of file
+  - #include "cmStandardLexer.h" at the top
+  - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
 
 #include "cmExprParserHelper.h"
 

Source/cmFortranLexer.cxx

@@ -1,7 +1,9 @@
+#include "cmStandardLexer.h"
 #line 2 "cmFortranLexer.cxx"
 
 #line 4 "cmFortranLexer.cxx"
 
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
@@ -651,22 +653,22 @@ static yyconst flex_int16_t yy_chk[633] =
 
 /*
 
-This file must be translated to C and modified to build everywhere.
+This file must be translated to C++ and modified to build everywhere.
 
 Run flex >= 2.6 like this:
 
-  flex -i --prefix=cmFortran_yy --header-file=cmFortranLexer.h -ocmFortranLexer.cxx cmFortranLexer.in.l
+  flex -i --nounistd -DFLEXINT_H --prefix=cmFortran_yy --header-file=cmFortranLexer.h -ocmFortranLexer.cxx cmFortranLexer.in.l
 
 Modify cmFortranLexer.cxx:
   - remove trailing whitespace: sed -i 's/\s*$//' cmFortranLexer.h cmFortranLexer.cxx
   - remove blank lines at end of file
-  - remove "yyscanner = NULL" from end of cmFortran_yylex_destroy
-  - remove all YY_BREAK lines occurring right after return statements
+  - #include "cmStandardLexer.h" at the top
   - add cast in cmFortran_yy_scan_bytes for loop condition of _yybytes_len to size_t
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
+
 #undef YY_NO_UNPUT
 
 #define cmFortranLexer_cxx
@@ -683,7 +685,7 @@ Modify cmFortranLexer.cxx:
 /*--------------------------------------------------------------------------*/
 
 
-#line 696 "cmFortranLexer.cxx"
+#line 688 "cmFortranLexer.cxx"
 
 #define INITIAL 0
 #define free_fmt 1
@@ -691,14 +693,6 @@ Modify cmFortranLexer.cxx:
 #define str_sq 3
 #define str_dq 4
 
-#ifndef YY_NO_UNISTD_H
-/* Special case for "unistd.h", since it is non-ANSI. We include it way
- * down here because we want the user's section 1 to have been scanned first.
- * The user has a chance to override it with an option.
- */
-#include <unistd.h>
-#endif
-
 #ifndef YY_EXTRA_TYPE
 #define YY_EXTRA_TYPE void *
 #endif
@@ -951,10 +945,10 @@ YY_DECL
 		}
 
 	{
-#line 65 "cmFortranLexer.in.l"
+#line 56 "cmFortranLexer.in.l"
 
 
-#line 967 "cmFortranLexer.cxx"
+#line 951 "cmFortranLexer.cxx"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -1014,7 +1008,7 @@ do_action:	/* This label is used only to access EOF actions. */
 
 case 1:
 YY_RULE_SETUP
-#line 67 "cmFortranLexer.in.l"
+#line 58 "cmFortranLexer.in.l"
 {
   cmFortranParser_StringStart(yyextra);
   cmFortranParser_SetOldStartcond(yyextra, YY_START);
@@ -1023,7 +1017,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 2:
 YY_RULE_SETUP
-#line 73 "cmFortranLexer.in.l"
+#line 64 "cmFortranLexer.in.l"
 {
   cmFortranParser_StringStart(yyextra);
   cmFortranParser_SetOldStartcond(yyextra, YY_START);
@@ -1031,28 +1025,29 @@ YY_RULE_SETUP
 }
 	YY_BREAK
 case 3:
-#line 80 "cmFortranLexer.in.l"
+#line 71 "cmFortranLexer.in.l"
 case 4:
 YY_RULE_SETUP
-#line 80 "cmFortranLexer.in.l"
+#line 71 "cmFortranLexer.in.l"
 {
   BEGIN(cmFortranParser_GetOldStartcond(yyextra) );
   yylvalp->string = strdup(cmFortranParser_StringEnd(yyextra));
   return STRING;
 }
+	YY_BREAK
 case 5:
 /* rule 5 can match eol */
-#line 87 "cmFortranLexer.in.l"
+#line 78 "cmFortranLexer.in.l"
 case 6:
 /* rule 6 can match eol */
 YY_RULE_SETUP
-#line 87 "cmFortranLexer.in.l"
+#line 78 "cmFortranLexer.in.l"
 /* Ignore (continued strings, free fmt) */
 	YY_BREAK
 case 7:
 /* rule 7 can match eol */
 YY_RULE_SETUP
-#line 89 "cmFortranLexer.in.l"
+#line 80 "cmFortranLexer.in.l"
 {
   if (cmFortranParser_GetOldStartcond(yyextra) == fixed_fmt)
     ; /* Ignore (cont. strings, fixed fmt) */
@@ -1065,15 +1060,16 @@ YY_RULE_SETUP
 case 8:
 /* rule 8 can match eol */
 YY_RULE_SETUP
-#line 99 "cmFortranLexer.in.l"
+#line 90 "cmFortranLexer.in.l"
 {
   unput ('\n');
   BEGIN(INITIAL);
   return UNTERMINATED_STRING;
 }
+	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 105 "cmFortranLexer.in.l"
+#line 96 "cmFortranLexer.in.l"
 {
   cmFortranParser_StringAppend(yyextra, yytext[0]);
 }
@@ -1081,205 +1077,245 @@ YY_RULE_SETUP
 case 10:
 /* rule 10 can match eol */
 YY_RULE_SETUP
-#line 109 "cmFortranLexer.in.l"
+#line 100 "cmFortranLexer.in.l"
 { return EOSTMT; } /* Treat comments like */
+	YY_BREAK
 case 11:
 /* rule 11 can match eol */
 YY_RULE_SETUP
-#line 110 "cmFortranLexer.in.l"
+#line 101 "cmFortranLexer.in.l"
 { return EOSTMT; } /* empty lines */
+	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 112 "cmFortranLexer.in.l"
+#line 103 "cmFortranLexer.in.l"
 { return CPP_LINE_DIRECTIVE; }
+	YY_BREAK
 case 13:
 /* rule 13 can match eol */
 YY_RULE_SETUP
-#line 113 "cmFortranLexer.in.l"
+#line 104 "cmFortranLexer.in.l"
 {
   yytext[yyleng-1] = 0;
   yylvalp->string = strdup(strchr(yytext, '<')+1);
   return CPP_INCLUDE_ANGLE;
 }
+	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 118 "cmFortranLexer.in.l"
+#line 109 "cmFortranLexer.in.l"
 { return CPP_INCLUDE; }
+	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 119 "cmFortranLexer.in.l"
+#line 110 "cmFortranLexer.in.l"
 { return F90PPR_INCLUDE; }
+	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 120 "cmFortranLexer.in.l"
+#line 111 "cmFortranLexer.in.l"
 { return COCO_INCLUDE; }
+	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 122 "cmFortranLexer.in.l"
+#line 113 "cmFortranLexer.in.l"
 { return CPP_DEFINE; }
+	YY_BREAK
 case 18:
 YY_RULE_SETUP
-#line 123 "cmFortranLexer.in.l"
+#line 114 "cmFortranLexer.in.l"
 { return F90PPR_DEFINE; }
+	YY_BREAK
 case 19:
 YY_RULE_SETUP
-#line 125 "cmFortranLexer.in.l"
+#line 116 "cmFortranLexer.in.l"
 { return CPP_UNDEF; }
+	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 126 "cmFortranLexer.in.l"
+#line 117 "cmFortranLexer.in.l"
 { return F90PPR_UNDEF; }
+	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 128 "cmFortranLexer.in.l"
+#line 119 "cmFortranLexer.in.l"
 { return CPP_IFDEF; }
+	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 129 "cmFortranLexer.in.l"
+#line 120 "cmFortranLexer.in.l"
 { return CPP_IFNDEF; }
+	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 130 "cmFortranLexer.in.l"
+#line 121 "cmFortranLexer.in.l"
 { return CPP_IF; }
+	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 131 "cmFortranLexer.in.l"
+#line 122 "cmFortranLexer.in.l"
 { return CPP_ELIF; }
+	YY_BREAK
 case 25:
 YY_RULE_SETUP
-#line 132 "cmFortranLexer.in.l"
+#line 123 "cmFortranLexer.in.l"
 { return CPP_ELSE; }
+	YY_BREAK
 case 26:
 YY_RULE_SETUP
-#line 133 "cmFortranLexer.in.l"
+#line 124 "cmFortranLexer.in.l"
 { return CPP_ENDIF; }
+	YY_BREAK
 case 27:
 YY_RULE_SETUP
-#line 135 "cmFortranLexer.in.l"
+#line 126 "cmFortranLexer.in.l"
 { return F90PPR_IFDEF; }
+	YY_BREAK
 case 28:
 YY_RULE_SETUP
-#line 136 "cmFortranLexer.in.l"
+#line 127 "cmFortranLexer.in.l"
 { return F90PPR_IFNDEF; }
+	YY_BREAK
 case 29:
 YY_RULE_SETUP
-#line 137 "cmFortranLexer.in.l"
+#line 128 "cmFortranLexer.in.l"
 { return F90PPR_IF; }
+	YY_BREAK
 case 30:
 YY_RULE_SETUP
-#line 138 "cmFortranLexer.in.l"
+#line 129 "cmFortranLexer.in.l"
 { return F90PPR_ELIF; }
+	YY_BREAK
 case 31:
 YY_RULE_SETUP
-#line 139 "cmFortranLexer.in.l"
+#line 130 "cmFortranLexer.in.l"
 { return F90PPR_ELSE; }
+	YY_BREAK
 case 32:
 YY_RULE_SETUP
-#line 140 "cmFortranLexer.in.l"
+#line 131 "cmFortranLexer.in.l"
 { return F90PPR_ENDIF; }
+	YY_BREAK
 /* Line continuations, possible involving comments.  */
 case 33:
 /* rule 33 can match eol */
 YY_RULE_SETUP
-#line 143 "cmFortranLexer.in.l"
+#line 134 "cmFortranLexer.in.l"
 
 	YY_BREAK
 case 34:
 /* rule 34 can match eol */
 YY_RULE_SETUP
-#line 144 "cmFortranLexer.in.l"
+#line 135 "cmFortranLexer.in.l"
 
 	YY_BREAK
 case 35:
 YY_RULE_SETUP
-#line 146 "cmFortranLexer.in.l"
+#line 137 "cmFortranLexer.in.l"
 { return COMMA; }
+	YY_BREAK
 case 36:
 YY_RULE_SETUP
-#line 148 "cmFortranLexer.in.l"
+#line 139 "cmFortranLexer.in.l"
 { return DCOLON; }
+	YY_BREAK
 case 37:
 YY_RULE_SETUP
-#line 149 "cmFortranLexer.in.l"
+#line 140 "cmFortranLexer.in.l"
 { return COLON; }
+	YY_BREAK
 case 38:
 /* rule 38 can match eol */
 YY_RULE_SETUP
-#line 151 "cmFortranLexer.in.l"
+#line 142 "cmFortranLexer.in.l"
 { return GARBAGE; }
+	YY_BREAK
 case 39:
 YY_RULE_SETUP
-#line 153 "cmFortranLexer.in.l"
+#line 144 "cmFortranLexer.in.l"
 { return ASSIGNMENT_OP; }
+	YY_BREAK
 case 40:
 YY_RULE_SETUP
-#line 155 "cmFortranLexer.in.l"
+#line 146 "cmFortranLexer.in.l"
 { return END; }
+	YY_BREAK
 case 41:
 YY_RULE_SETUP
-#line 156 "cmFortranLexer.in.l"
+#line 147 "cmFortranLexer.in.l"
 { return INCLUDE; }
+	YY_BREAK
 case 42:
 YY_RULE_SETUP
-#line 157 "cmFortranLexer.in.l"
+#line 148 "cmFortranLexer.in.l"
 { return INTERFACE; }
+	YY_BREAK
 case 43:
 YY_RULE_SETUP
-#line 158 "cmFortranLexer.in.l"
+#line 149 "cmFortranLexer.in.l"
 { return MODULE; }
+	YY_BREAK
 case 44:
 YY_RULE_SETUP
-#line 159 "cmFortranLexer.in.l"
+#line 150 "cmFortranLexer.in.l"
 { return SUBMODULE; }
+	YY_BREAK
 case 45:
 YY_RULE_SETUP
-#line 160 "cmFortranLexer.in.l"
+#line 151 "cmFortranLexer.in.l"
 { return USE; }
+	YY_BREAK
 case 46:
 YY_RULE_SETUP
-#line 162 "cmFortranLexer.in.l"
+#line 153 "cmFortranLexer.in.l"
 {
   yylvalp->string = strdup(yytext);
   return WORD;
 }
+	YY_BREAK
 case 47:
 YY_RULE_SETUP
-#line 167 "cmFortranLexer.in.l"
+#line 158 "cmFortranLexer.in.l"
 { return LPAREN; }
+	YY_BREAK
 case 48:
 YY_RULE_SETUP
-#line 168 "cmFortranLexer.in.l"
+#line 159 "cmFortranLexer.in.l"
 { return RPAREN; }
+	YY_BREAK
 case 49:
 YY_RULE_SETUP
-#line 170 "cmFortranLexer.in.l"
+#line 161 "cmFortranLexer.in.l"
 { return GARBAGE; }
+	YY_BREAK
 case 50:
 /* rule 50 can match eol */
 YY_RULE_SETUP
-#line 172 "cmFortranLexer.in.l"
+#line 163 "cmFortranLexer.in.l"
 { return EOSTMT; }
+	YY_BREAK
 case 51:
 YY_RULE_SETUP
-#line 175 "cmFortranLexer.in.l"
+#line 166 "cmFortranLexer.in.l"
 /* Ignore */
 	YY_BREAK
 case 52:
 /* rule 52 can match eol */
 YY_RULE_SETUP
-#line 176 "cmFortranLexer.in.l"
+#line 167 "cmFortranLexer.in.l"
 /* Ignore line-endings preceded by \ */
 	YY_BREAK
 case 53:
 YY_RULE_SETUP
-#line 178 "cmFortranLexer.in.l"
+#line 169 "cmFortranLexer.in.l"
 { return *yytext; }
+	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(free_fmt):
 case YY_STATE_EOF(fixed_fmt):
 case YY_STATE_EOF(str_sq):
 case YY_STATE_EOF(str_dq):
-#line 180 "cmFortranLexer.in.l"
+#line 171 "cmFortranLexer.in.l"
 {
   if(!cmFortranParser_FilePop(yyextra) )
     {
@@ -1289,10 +1325,10 @@ case YY_STATE_EOF(str_dq):
 	YY_BREAK
 case 54:
 YY_RULE_SETUP
-#line 187 "cmFortranLexer.in.l"
+#line 178 "cmFortranLexer.in.l"
 ECHO;
 	YY_BREAK
-#line 1347 "cmFortranLexer.cxx"
+#line 1331 "cmFortranLexer.cxx"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -2400,6 +2436,7 @@ int cmFortran_yylex_destroy  (yyscan_t yyscanner)
 
     /* Destroy the main struct (reentrant only). */
     cmFortran_yyfree ( yyscanner , yyscanner );
+    yyscanner = NULL;
     return 0;
 }
 
@@ -2461,7 +2498,7 @@ void cmFortran_yyfree (void * ptr , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 187 "cmFortranLexer.in.l"
+#line 178 "cmFortranLexer.in.l"
 
 
 

Source/cmFortranLexer.h

@@ -6,6 +6,7 @@
 
 #line 8 "cmFortranLexer.h"
 
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
@@ -224,14 +225,6 @@ void cmFortran_yyfree (void * ,yyscan_t yyscanner );
 
 #endif
 
-#ifndef YY_NO_UNISTD_H
-/* Special case for "unistd.h", since it is non-ANSI. We include it way
- * down here because we want the user's section 1 to have been scanned first.
- * The user has a chance to override it with an option.
- */
-#include <unistd.h>
-#endif
-
 #ifndef YY_EXTRA_TYPE
 #define YY_EXTRA_TYPE void *
 #endif
@@ -337,9 +330,9 @@ extern int cmFortran_yylex (yyscan_t yyscanner);
 #undef YY_DECL
 #endif
 
-#line 187 "cmFortranLexer.in.l"
+#line 178 "cmFortranLexer.in.l"
 
 
-#line 344 "cmFortranLexer.h"
+#line 337 "cmFortranLexer.h"
 #undef cmFortran_yyIN_HEADER
 #endif /* cmFortran_yyHEADER_H */

Source/cmFortranLexer.in.l

@@ -13,22 +13,22 @@
 
 /*
 
-This file must be translated to C and modified to build everywhere.
+This file must be translated to C++ and modified to build everywhere.
 
 Run flex >= 2.6 like this:
 
-  flex -i --prefix=cmFortran_yy --header-file=cmFortranLexer.h -ocmFortranLexer.cxx cmFortranLexer.in.l
+  flex -i --nounistd -DFLEXINT_H --prefix=cmFortran_yy --header-file=cmFortranLexer.h -ocmFortranLexer.cxx cmFortranLexer.in.l
 
 Modify cmFortranLexer.cxx:
   - remove trailing whitespace: sed -i 's/\s*$//' cmFortranLexer.h cmFortranLexer.cxx
   - remove blank lines at end of file
-  - remove "yyscanner = NULL" from end of cmFortran_yylex_destroy
-  - remove all YY_BREAK lines occurring right after return statements
+  - #include "cmStandardLexer.h" at the top
   - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
+
 #undef YY_NO_UNPUT
 
 #define cmFortranLexer_cxx

Source/cmListFileLexer.c

@@ -1,7 +1,9 @@
+#include "cmStandardLexer.h"
 #line 2 "cmListFileLexer.c"
 
 #line 4 "cmListFileLexer.c"
 
+#define FLEXINT_H 1
 #define  YY_INT_ALIGNED short int
 
 /* A lexical scanner generated by flex */
@@ -9,7 +11,7 @@
 #define FLEX_SCANNER
 #define YY_FLEX_MAJOR_VERSION 2
 #define YY_FLEX_MINOR_VERSION 6
-#define YY_FLEX_SUBMINOR_VERSION 0
+#define YY_FLEX_SUBMINOR_VERSION 1
 #if YY_FLEX_SUBMINOR_VERSION > 0
 #define FLEX_BETA
 #endif
@@ -88,25 +90,13 @@ typedef unsigned int flex_uint32_t;
 
 #endif /* ! FLEXINT_H */
 
-#ifdef __cplusplus
-
-/* The "const" storage-class-modifier is valid. */
-#define YY_USE_CONST
-
-#else	/* ! __cplusplus */
-
-/* C99 requires __STDC__ to be defined as 1. */
-#if defined (__STDC__)
-
-#define YY_USE_CONST
-
-#endif	/* defined (__STDC__) */
-#endif	/* ! __cplusplus */
-
-#ifdef YY_USE_CONST
+/* TODO: this is always defined, so inline it */
 #define yyconst const
+
+#if defined(__GNUC__) && __GNUC__ >= 3
+#define yynoreturn __attribute__((__noreturn__))
 #else
-#define yyconst
+#define yynoreturn
 #endif
 
 /* Returned upon end-of-file. */
@@ -238,7 +228,7 @@ struct yy_buffer_state
 	/* Size of input buffer in bytes, not including room for EOB
 	 * characters.
 	 */
-	yy_size_t yy_buf_size;
+	int yy_buf_size;
 
 	/* Number of characters read into yy_ch_buf, not including EOB
 	 * characters.
@@ -322,7 +312,7 @@ static void cmListFileLexer_yy_init_buffer (YY_BUFFER_STATE b,FILE *file ,yyscan
 
 YY_BUFFER_STATE cmListFileLexer_yy_scan_buffer (char *base,yy_size_t size ,yyscan_t yyscanner );
 YY_BUFFER_STATE cmListFileLexer_yy_scan_string (yyconst char *yy_str ,yyscan_t yyscanner );
-YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes (yyconst char *bytes,yy_size_t len ,yyscan_t yyscanner );
+YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes (yyconst char *bytes,int len ,yyscan_t yyscanner );
 
 void *cmListFileLexer_yyalloc (yy_size_t ,yyscan_t yyscanner );
 void *cmListFileLexer_yyrealloc (void *,yy_size_t ,yyscan_t yyscanner );
@@ -366,17 +356,14 @@ typedef int yy_state_type;
 static yy_state_type yy_get_previous_state (yyscan_t yyscanner );
 static yy_state_type yy_try_NUL_trans (yy_state_type current_state  ,yyscan_t yyscanner);
 static int yy_get_next_buffer (yyscan_t yyscanner );
-#if defined(__GNUC__) && __GNUC__ >= 3
-__attribute__((__noreturn__))
-#endif
-static void yy_fatal_error (yyconst char msg[] ,yyscan_t yyscanner );
+static void yynoreturn yy_fatal_error (yyconst char* msg ,yyscan_t yyscanner );
 
 /* Done after the current pattern has been matched and before the
  * corresponding action - sets up yytext.
  */
 #define YY_DO_BEFORE_ACTION \
 	yyg->yytext_ptr = yy_bp; \
-	yyleng = (size_t) (yy_cp - yy_bp); \
+	yyleng = (int) (yy_cp - yy_bp); \
 	yyg->yy_hold_char = *yy_cp; \
 	*yy_cp = '\0'; \
 	yyg->yy_c_buf_p = yy_cp;
@@ -557,18 +544,19 @@ This file must be translated to C and modified to build everywhere.
 
 Run flex >= 2.6 like this:
 
-  flex --prefix=cmListFileLexer_yy -ocmListFileLexer.c cmListFileLexer.in.l
+  flex --nounistd -DFLEXINT_H --prefix=cmListFileLexer_yy -ocmListFileLexer.c cmListFileLexer.in.l
 
 Modify cmListFileLexer.c:
   - remove trailing whitespace: sed -i 's/\s*$//' cmListFileLexer.c
   - remove blank lines at end of file
-  - remove statement "yyscanner = NULL;" from cmListFileLexer_yylex_destroy
-  - remove all YY_BREAK lines occurring right after return statements
-  - remove unnecessary cast to (int) in yy_get_next_buffer
+  - #include "cmStandardLexer.h" at the top
+  - add cast in cmListFileLexer_yy_scan_bytes for loop condition of _yybytes_len to size_t
+  - change type of variable yyl under yy_find_action from yy_size_t to int
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
+
 #ifdef WIN32
 #include <cmsys/Encoding.h>
 #endif
@@ -583,7 +571,7 @@ Modify cmListFileLexer.c:
 struct cmListFileLexer_s
 {
   cmListFileLexer_Token token;
-  yy_size_t bracket;
+  int bracket;
   int comment;
   int line;
   int column;
@@ -615,7 +603,7 @@ static void cmListFileLexerDestroy(cmListFileLexer* lexer);
 
 
 
-#line 628 "cmListFileLexer.c"
+#line 606 "cmListFileLexer.c"
 
 #define INITIAL 0
 #define STRING 1
@@ -623,14 +611,6 @@ static void cmListFileLexerDestroy(cmListFileLexer* lexer);
 #define BRACKETEND 3
 #define COMMENT 4
 
-#ifndef YY_NO_UNISTD_H
-/* Special case for "unistd.h", since it is non-ANSI. We include it way
- * down here because we want the user's section 1 to have been scanned first.
- * The user has a chance to override it with an option.
- */
-#include <unistd.h>
-#endif
-
 #ifndef YY_EXTRA_TYPE
 #define YY_EXTRA_TYPE void *
 #endif
@@ -649,7 +629,7 @@ struct yyguts_t
     YY_BUFFER_STATE * yy_buffer_stack; /**< Stack as an array. */
     char yy_hold_char;
     int yy_n_chars;
-    yy_size_t yyleng_r;
+    int yyleng_r;
     char *yy_c_buf_p;
     int yy_init;
     int yy_start;
@@ -696,7 +676,7 @@ FILE *cmListFileLexer_yyget_out (yyscan_t yyscanner );
 
 void cmListFileLexer_yyset_out  (FILE * _out_str ,yyscan_t yyscanner );
 
-yy_size_t cmListFileLexer_yyget_leng (yyscan_t yyscanner );
+			int cmListFileLexer_yyget_leng (yyscan_t yyscanner );
 
 char *cmListFileLexer_yyget_text (yyscan_t yyscanner );
 
@@ -759,7 +739,7 @@ static int input (yyscan_t yyscanner );
 /* This used to be an fputs(), but since the string might contain NUL's,
  * we now use fwrite().
  */
-#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0)
+#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
 #endif
 
 /* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
@@ -783,7 +763,7 @@ static int input (yyscan_t yyscanner );
 	else \
 		{ \
 		errno=0; \
-		while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
+		while ( (result = (int) fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \
 			{ \
 			if( errno != EINTR) \
 				{ \
@@ -880,10 +860,10 @@ YY_DECL
 		}
 
 	{
-#line 88 "cmListFileLexer.in.l"
+#line 80 "cmListFileLexer.in.l"
 
 
-#line 896 "cmListFileLexer.c"
+#line 866 "cmListFileLexer.c"
 
 	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
 		{
@@ -913,7 +893,7 @@ yy_match:
 				if ( yy_current_state >= 77 )
 					yy_c = yy_meta[(unsigned int) yy_c];
 				}
-			yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+			yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
 			++yy_cp;
 			}
 		while ( yy_base[yy_current_state] != 237 );
@@ -931,7 +911,7 @@ yy_find_action:
 
 		if ( yy_act != YY_END_OF_BUFFER && yy_rule_can_match_eol[yy_act] )
 			{
-			yy_size_t yyl;
+			int yyl;
 			for ( yyl = 0; yyl < yyleng; ++yyl )
 				if ( yytext[yyl] == '\n' )
 
@@ -955,7 +935,7 @@ do_action:	/* This label is used only to access EOF actions. */
 case 1:
 /* rule 1 can match eol */
 YY_RULE_SETUP
-#line 90 "cmListFileLexer.in.l"
+#line 82 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_Newline;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
@@ -964,10 +944,11 @@ YY_RULE_SETUP
   BEGIN(INITIAL);
   return 1;
 }
+	YY_BREAK
 case 2:
 /* rule 2 can match eol */
 YY_RULE_SETUP
-#line 99 "cmListFileLexer.in.l"
+#line 91 "cmListFileLexer.in.l"
 {
   const char* bracket = yytext;
   lexer->comment = yytext[0] == '#';
@@ -990,7 +971,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 3:
 YY_RULE_SETUP
-#line 119 "cmListFileLexer.in.l"
+#line 111 "cmListFileLexer.in.l"
 {
   lexer->column += yyleng;
   BEGIN(COMMENT);
@@ -998,41 +979,44 @@ YY_RULE_SETUP
 	YY_BREAK
 case 4:
 YY_RULE_SETUP
-#line 124 "cmListFileLexer.in.l"
+#line 116 "cmListFileLexer.in.l"
 {
   lexer->column += yyleng;
 }
 	YY_BREAK
 case 5:
 YY_RULE_SETUP
-#line 128 "cmListFileLexer.in.l"
+#line 120 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ParenLeft;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 6:
 YY_RULE_SETUP
-#line 135 "cmListFileLexer.in.l"
+#line 127 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ParenRight;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 7:
 YY_RULE_SETUP
-#line 142 "cmListFileLexer.in.l"
+#line 134 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_Identifier;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 8:
 YY_RULE_SETUP
-#line 149 "cmListFileLexer.in.l"
+#line 141 "cmListFileLexer.in.l"
 {
   /* Handle ]]====]=======]*/
   cmListFileLexerAppend(lexer, yytext, yyleng);
@@ -1044,7 +1028,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 9:
 YY_RULE_SETUP
-#line 158 "cmListFileLexer.in.l"
+#line 150 "cmListFileLexer.in.l"
 {
   lexer->column += yyleng;
   /* Erase the partial bracket from the token.  */
@@ -1053,9 +1037,10 @@ YY_RULE_SETUP
   BEGIN(INITIAL);
   return 1;
 }
+	YY_BREAK
 case 10:
 YY_RULE_SETUP
-#line 167 "cmListFileLexer.in.l"
+#line 159 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   lexer->column += yyleng;
@@ -1064,7 +1049,7 @@ YY_RULE_SETUP
 case 11:
 /* rule 11 can match eol */
 YY_RULE_SETUP
-#line 172 "cmListFileLexer.in.l"
+#line 164 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   ++lexer->line;
@@ -1074,7 +1059,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 12:
 YY_RULE_SETUP
-#line 179 "cmListFileLexer.in.l"
+#line 171 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   lexer->column += yyleng;
@@ -1083,42 +1068,46 @@ YY_RULE_SETUP
 	YY_BREAK
 case YY_STATE_EOF(BRACKET):
 case YY_STATE_EOF(BRACKETEND):
-#line 185 "cmListFileLexer.in.l"
+#line 177 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_BadBracket;
   BEGIN(INITIAL);
   return 1;
 }
+	YY_BREAK
 case 13:
 YY_RULE_SETUP
-#line 191 "cmListFileLexer.in.l"
+#line 183 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ArgumentUnquoted;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 14:
 YY_RULE_SETUP
-#line 198 "cmListFileLexer.in.l"
+#line 190 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ArgumentUnquoted;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 15:
 YY_RULE_SETUP
-#line 205 "cmListFileLexer.in.l"
+#line 197 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ArgumentUnquoted;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 16:
 YY_RULE_SETUP
-#line 212 "cmListFileLexer.in.l"
+#line 204 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_ArgumentQuoted;
   cmListFileLexerSetToken(lexer, "", 0);
@@ -1128,7 +1117,7 @@ YY_RULE_SETUP
 	YY_BREAK
 case 17:
 YY_RULE_SETUP
-#line 219 "cmListFileLexer.in.l"
+#line 211 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   lexer->column += yyleng;
@@ -1137,7 +1126,7 @@ YY_RULE_SETUP
 case 18:
 /* rule 18 can match eol */
 YY_RULE_SETUP
-#line 224 "cmListFileLexer.in.l"
+#line 216 "cmListFileLexer.in.l"
 {
   /* Continuation: text is not part of string */
   ++lexer->line;
@@ -1147,7 +1136,7 @@ YY_RULE_SETUP
 case 19:
 /* rule 19 can match eol */
 YY_RULE_SETUP
-#line 230 "cmListFileLexer.in.l"
+#line 222 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   ++lexer->line;
@@ -1156,59 +1145,64 @@ YY_RULE_SETUP
 	YY_BREAK
 case 20:
 YY_RULE_SETUP
-#line 236 "cmListFileLexer.in.l"
+#line 228 "cmListFileLexer.in.l"
 {
   lexer->column += yyleng;
   BEGIN(INITIAL);
   return 1;
 }
+	YY_BREAK
 case 21:
 YY_RULE_SETUP
-#line 242 "cmListFileLexer.in.l"
+#line 234 "cmListFileLexer.in.l"
 {
   cmListFileLexerAppend(lexer, yytext, yyleng);
   lexer->column += yyleng;
 }
 	YY_BREAK
 case YY_STATE_EOF(STRING):
-#line 247 "cmListFileLexer.in.l"
+#line 239 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_BadString;
   BEGIN(INITIAL);
   return 1;
 }
+	YY_BREAK
 case 22:
 YY_RULE_SETUP
-#line 253 "cmListFileLexer.in.l"
+#line 245 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_Space;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case 23:
 YY_RULE_SETUP
-#line 260 "cmListFileLexer.in.l"
+#line 252 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_BadCharacter;
   cmListFileLexerSetToken(lexer, yytext, yyleng);
   lexer->column += yyleng;
   return 1;
 }
+	YY_BREAK
 case YY_STATE_EOF(INITIAL):
 case YY_STATE_EOF(COMMENT):
-#line 267 "cmListFileLexer.in.l"
+#line 259 "cmListFileLexer.in.l"
 {
   lexer->token.type = cmListFileLexer_Token_None;
   cmListFileLexerSetToken(lexer, 0, 0);
   return 0;
 }
+	YY_BREAK
 case 24:
 YY_RULE_SETUP
-#line 273 "cmListFileLexer.in.l"
+#line 265 "cmListFileLexer.in.l"
 ECHO;
 	YY_BREAK
-#line 1235 "cmListFileLexer.c"
+#line 1205 "cmListFileLexer.c"
 
 	case YY_END_OF_BUFFER:
 		{
@@ -1394,7 +1388,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 	else
 		{
-			yy_size_t num_to_read =
+			int num_to_read =
 			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
 
 		while ( num_to_read <= 0 )
@@ -1408,7 +1402,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 			if ( b->yy_is_our_buffer )
 				{
-				yy_size_t new_size = b->yy_buf_size * 2;
+				int new_size = b->yy_buf_size * 2;
 
 				if ( new_size <= 0 )
 					b->yy_buf_size += b->yy_buf_size / 8;
@@ -1421,7 +1415,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 				}
 			else
 				/* Can't grow it, we don't own it. */
-				b->yy_ch_buf = 0;
+				b->yy_ch_buf = NULL;
 
 			if ( ! b->yy_ch_buf )
 				YY_FATAL_ERROR(
@@ -1463,7 +1457,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	else
 		ret_val = EOB_ACT_CONTINUE_SCAN;
 
-	if ((yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
+	if ((int) (yyg->yy_n_chars + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
 		/* Extend the array by 50%, plus the number we really need. */
 		int new_size = yyg->yy_n_chars + number_to_move + (yyg->yy_n_chars >> 1);
 		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) cmListFileLexer_yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ,yyscanner );
@@ -1504,7 +1498,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 			if ( yy_current_state >= 77 )
 				yy_c = yy_meta[(unsigned int) yy_c];
 			}
-		yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+		yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
 		}
 
 	return yy_current_state;
@@ -1533,7 +1527,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		if ( yy_current_state >= 77 )
 			yy_c = yy_meta[(unsigned int) yy_c];
 		}
-	yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c];
+	yy_current_state = yy_nxt[yy_base[yy_current_state] + (flex_int16_t) yy_c];
 	yy_is_jam = (yy_current_state == 76);
 
 	(void)yyg;
@@ -1555,7 +1549,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 	if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
 		{ /* need to shift things up to make room */
 		/* +2 for EOB chars. */
-		yy_size_t number_to_move = yyg->yy_n_chars + 2;
+		int number_to_move = yyg->yy_n_chars + 2;
 		char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
 					YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
 		char *source =
@@ -1567,7 +1561,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 		yy_cp += (int) (dest - source);
 		yy_bp += (int) (dest - source);
 		YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
-			yyg->yy_n_chars = YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
+			yyg->yy_n_chars = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
 
 		if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
 			YY_FATAL_ERROR( "flex scanner push-back overflow" );
@@ -1611,7 +1605,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 
 		else
 			{ /* need more input */
-			yy_size_t offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
+			int offset = yyg->yy_c_buf_p - yyg->yytext_ptr;
 			++yyg->yy_c_buf_p;
 
 			switch ( yy_get_next_buffer( yyscanner ) )
@@ -1635,7 +1629,7 @@ static int yy_get_next_buffer (yyscan_t yyscanner)
 				case EOB_ACT_END_OF_FILE:
 					{
 					if ( cmListFileLexer_yywrap(yyscanner ) )
-						return EOF;
+						return 0;
 
 					if ( ! yyg->yy_did_buffer_switch_on_eof )
 						YY_NEW_FILE;
@@ -1898,7 +1892,7 @@ void cmListFileLexer_yypop_buffer_state (yyscan_t yyscanner)
  */
 static void cmListFileLexer_yyensure_buffer_stack (yyscan_t yyscanner)
 {
-	yy_size_t num_to_alloc;
+	int num_to_alloc;
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 
 	if (!yyg->yy_buffer_stack) {
@@ -1907,7 +1901,7 @@ static void cmListFileLexer_yyensure_buffer_stack (yyscan_t yyscanner)
 		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
 		 * immediate realloc on the next call.
          */
-		num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
+      num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
 		yyg->yy_buffer_stack = (struct yy_buffer_state**)cmListFileLexer_yyalloc
 								(num_to_alloc * sizeof(struct yy_buffer_state*)
 								, yyscanner);
@@ -1954,7 +1948,7 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_buffer  (char * base, yy_size_t  size ,
 	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
 	     base[size-1] != YY_END_OF_BUFFER_CHAR )
 		/* They forgot to leave room for the EOB's. */
-		return 0;
+		return NULL;
 
 	b = (YY_BUFFER_STATE) cmListFileLexer_yyalloc(sizeof( struct yy_buffer_state ) ,yyscanner );
 	if ( ! b )
@@ -1963,7 +1957,7 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_buffer  (char * base, yy_size_t  size ,
 	b->yy_buf_size = size - 2;	/* "- 2" to take care of EOB's */
 	b->yy_buf_pos = b->yy_ch_buf = base;
 	b->yy_is_our_buffer = 0;
-	b->yy_input_file = 0;
+	b->yy_input_file = NULL;
 	b->yy_n_chars = b->yy_buf_size;
 	b->yy_is_interactive = 0;
 	b->yy_at_bol = 1;
@@ -1986,7 +1980,7 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_buffer  (char * base, yy_size_t  size ,
 YY_BUFFER_STATE cmListFileLexer_yy_scan_string (yyconst char * yystr , yyscan_t yyscanner)
 {
 
-	return cmListFileLexer_yy_scan_bytes(yystr,strlen(yystr) ,yyscanner);
+	return cmListFileLexer_yy_scan_bytes(yystr,(int) strlen(yystr) ,yyscanner);
 }
 
 /** Setup the input buffer state to scan the given bytes. The next call to cmListFileLexer_yylex() will
@@ -1996,7 +1990,7 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_string (yyconst char * yystr , yyscan_t
  * @param yyscanner The scanner object.
  * @return the newly allocated buffer state object.
  */
-YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes  (yyconst char * yybytes, yy_size_t  _yybytes_len , yyscan_t yyscanner)
+YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes  (yyconst char * yybytes, int  _yybytes_len , yyscan_t yyscanner)
 {
 	YY_BUFFER_STATE b;
 	char *buf;
@@ -2004,12 +1998,12 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes  (yyconst char * yybytes, yy_size_
 	yy_size_t i;
 
 	/* Get memory for full buffer, including space for trailing EOB's. */
-	n = _yybytes_len + 2;
+	n = (yy_size_t) _yybytes_len + 2;
 	buf = (char *) cmListFileLexer_yyalloc(n ,yyscanner );
 	if ( ! buf )
 		YY_FATAL_ERROR( "out of dynamic memory in cmListFileLexer_yy_scan_bytes()" );
 
-	for ( i = 0; i < _yybytes_len; ++i )
+	for ( i = 0; i < (size_t)_yybytes_len; ++i )
 		buf[i] = yybytes[i];
 
 	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
@@ -2030,7 +2024,7 @@ YY_BUFFER_STATE cmListFileLexer_yy_scan_bytes  (yyconst char * yybytes, yy_size_
 #define YY_EXIT_FAILURE 2
 #endif
 
-static void yy_fatal_error (yyconst char* msg , yyscan_t yyscanner)
+static void yynoreturn yy_fatal_error (yyconst char* msg , yyscan_t yyscanner)
 {
 	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 	(void)yyg;
@@ -2113,7 +2107,7 @@ FILE *cmListFileLexer_yyget_out  (yyscan_t yyscanner)
 /** Get the length of the current token.
  * @param yyscanner The scanner object.
  */
-yy_size_t cmListFileLexer_yyget_leng  (yyscan_t yyscanner)
+int cmListFileLexer_yyget_leng  (yyscan_t yyscanner)
 {
     struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
     return yyleng;
@@ -2272,10 +2266,10 @@ static int yy_init_globals (yyscan_t yyscanner)
      * This function is called from cmListFileLexer_yylex_destroy(), so don't allocate here.
      */
 
-    yyg->yy_buffer_stack = 0;
+    yyg->yy_buffer_stack = NULL;
     yyg->yy_buffer_stack_top = 0;
     yyg->yy_buffer_stack_max = 0;
-    yyg->yy_c_buf_p = (char *) 0;
+    yyg->yy_c_buf_p = NULL;
     yyg->yy_init = 0;
     yyg->yy_start = 0;
 
@@ -2288,8 +2282,8 @@ static int yy_init_globals (yyscan_t yyscanner)
     yyin = stdin;
     yyout = stdout;
 #else
-    yyin = (FILE *) 0;
-    yyout = (FILE *) 0;
+    yyin = NULL;
+    yyout = NULL;
 #endif
 
     /* For future reference: Set errno on error, since we are called by
@@ -2324,6 +2318,7 @@ int cmListFileLexer_yylex_destroy  (yyscan_t yyscanner)
 
     /* Destroy the main struct (reentrant only). */
     cmListFileLexer_yyfree ( yyscanner , yyscanner );
+    yyscanner = NULL;
     return 0;
 }
 
@@ -2358,7 +2353,7 @@ void *cmListFileLexer_yyalloc (yy_size_t  size , yyscan_t yyscanner)
 {
 	struct yyguts_t * yyg = (struct yyguts_t*)yyscanner;
 	(void)yyg;
-	return (void *) malloc( size );
+	return malloc(size);
 }
 
 void *cmListFileLexer_yyrealloc  (void * ptr, yy_size_t  size , yyscan_t yyscanner)
@@ -2373,7 +2368,7 @@ void *cmListFileLexer_yyrealloc  (void * ptr, yy_size_t  size , yyscan_t yyscann
 	 * any pointer type to void*, and deal with argument conversions
 	 * as though doing an assignment.
 	 */
-	return (void *) realloc( (char *) ptr, size );
+	return realloc(ptr, size);
 }
 
 void cmListFileLexer_yyfree (void * ptr , yyscan_t yyscanner)
@@ -2385,7 +2380,7 @@ void cmListFileLexer_yyfree (void * ptr , yyscan_t yyscanner)
 
 #define YYTABLES_NAME "yytables"
 
-#line 273 "cmListFileLexer.in.l"
+#line 265 "cmListFileLexer.in.l"
 
 
 

Source/cmListFileLexer.in.l

@@ -7,18 +7,19 @@ This file must be translated to C and modified to build everywhere.
 
 Run flex >= 2.6 like this:
 
-  flex --prefix=cmListFileLexer_yy -ocmListFileLexer.c cmListFileLexer.in.l
+  flex --nounistd -DFLEXINT_H --prefix=cmListFileLexer_yy -ocmListFileLexer.c cmListFileLexer.in.l
 
 Modify cmListFileLexer.c:
   - remove trailing whitespace: sed -i 's/\s*$//' cmListFileLexer.c
   - remove blank lines at end of file
-  - remove statement "yyscanner = NULL;" from cmListFileLexer_yylex_destroy
-  - remove all YY_BREAK lines occurring right after return statements
-  - remove unnecessary cast to (int) in yy_get_next_buffer
+  - #include "cmStandardLexer.h" at the top
+  - add cast in yy_scan_bytes for loop condition of _yybytes_len to size_t
+  - change type of variable yyl under yy_find_action from yy_size_t to int
 
 */
 
-#include "cmStandardLexer.h"
+/* IWYU pragma: no_forward_declare yyguts_t */
+
 #ifdef WIN32
 #include <cmsys/Encoding.h>
 #endif
@@ -33,7 +34,7 @@ Modify cmListFileLexer.c:
 struct cmListFileLexer_s
 {
   cmListFileLexer_Token token;
-  yy_size_t bracket;
+  int bracket;
   int comment;
   int line;
   int column;

Source/cmStandardLexer.h

@@ -3,8 +3,11 @@
 #ifndef cmStandardLexer_h
 #define cmStandardLexer_h
 
+#include <cmConfigure.h> // IWYU pragma: keep
+
 /* Disable some warnings.  */
 #if defined(_MSC_VER)
+#pragma warning(disable : 4018)
 #pragma warning(disable : 4127)
 #pragma warning(disable : 4131)
 #pragma warning(disable : 4244)
@@ -16,13 +19,24 @@
 #pragma warning(disable : 4786)
 #endif
 
-/* Define isatty on windows.  */
+#if defined(__GNUC__) && !defined(__INTEL_COMPILER)
+#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402
+#pragma GCC diagnostic ignored "-Wconversion"
+#pragma GCC diagnostic ignored "-Wsign-compare"
+#endif
+#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 403
+#pragma GCC diagnostic ignored "-Wsign-conversion"
+#endif
+#endif
+
+/* Make sure isatty is available. */
 #if defined(_WIN32) && !defined(__CYGWIN__)
 #include <io.h>
 #if defined(_MSC_VER)
 #define isatty _isatty
 #endif
-#define YY_NO_UNISTD_H 1
+#else
+#include <unistd.h> // IWYU pragma: export
 #endif
 
 /* Make sure malloc and free are available on QNX.  */
@@ -36,4 +50,12 @@
 #define YY_NO_UNPUT 1
 #define ECHO
 
+#include <cm_kwiml.h>
+typedef KWIML_INT_int8_t flex_int8_t;
+typedef KWIML_INT_uint8_t flex_uint8_t;
+typedef KWIML_INT_int16_t flex_int16_t;
+typedef KWIML_INT_uint16_t flex_uint16_t;
+typedef KWIML_INT_int32_t flex_int32_t;
+typedef KWIML_INT_uint32_t flex_uint32_t;
+
 #endif