CMake/Source/cmExprLexer.in.l

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%{
Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
/*
This file must be translated to C and modified to build everywhere.
Run flex like this:
flex --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)
*/
#include "cmStandardLexer.h"
#include "cmExprParserHelper.h"
/* Replace the lexer input function. */
#undef YY_INPUT
#define YY_INPUT(buf, result, max_size) \
{ result = yyextra->LexInput(buf, max_size); }
/* Include the set of tokens from the parser. */
#include "cmExprParserTokens.h"
/*--------------------------------------------------------------------------*/
%}
%option reentrant
%option noyywrap
%pointer
%%
[0-9][0-9]* { yylvalp->Number = atoi(yytext); return exp_NUMBER; }
"+" { return exp_PLUS; }
"-" { return exp_MINUS; }
"*" { return exp_TIMES; }
"/" { return exp_DIVIDE; }
"%" { return exp_MOD; }
"\|" { return exp_OR; }
"&" { return exp_AND; }
"^" { return exp_XOR; }
"~" { return exp_NOT; }
"<<" { return exp_SHIFTLEFT; }
">>" { return exp_SHIFTRIGHT; }
"(" { return exp_OPENPARENT; }
")" { return exp_CLOSEPARENT; }
%%