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https://github.com/X11Libre/xserver.git
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5377ee4d81
Using calloc() instead of malloc() as preventive measure, so there never can be any hidden bugs or leaks due uninitialized memory. The extra cost of using this compiler intrinsic should be practically impossible to measure - in many cases a good compiler can even deduce if certain areas really don't need to be zero'd (because they're written to right after allocation) and create more efficient machine code. The code pathes in question are pretty cold anyways, so it's probably not worth even thinking about potential extra runtime costs. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
%{ # -*- C -*-
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/*
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* Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
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* Copyright (C) Colin Harrison 2005-2008
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the XFree86 Project
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* shall not be used in advertising or otherwise to promote the sale, use
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* or other dealings in this Software without prior written authorization
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* from the XFree86 Project.
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*
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* Authors: Earle F. Philhower, III
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* Colin Harrison
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*/
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/* $XFree86: $ */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "winprefsyacc.h"
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extern void ErrorF (const char* /*f*/, ...);
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/* Copy the parsed string, must be free()d in yacc parser */
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static char *makestr(char *str)
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{
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char *ptr = calloc(1, strlen(str)+1);
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if (!ptr)
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{
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ErrorF ("winMultiWindowLex:makestr() out of memory\n");
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exit (-1);
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}
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strcpy(ptr, str);
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return ptr;
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}
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%}
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%option yylineno
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%option nounput
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%option noinput
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%option never-interactive
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%%
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\#.*[\r\n] { /* comment */ return NEWLINE; }
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\/\/.*[\r\n] { /* comment */ return NEWLINE; }
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[\r\n] { return NEWLINE; }
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[ \t]+ { /* ignore whitespace */ }
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MENU { return MENU; }
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ICONDIRECTORY { return ICONDIRECTORY; }
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DEFAULTICON { return DEFAULTICON; }
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ICONS { return ICONS; }
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STYLES { return STYLES; }
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TOPMOST { return TOPMOST; }
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MAXIMIZE { return MAXIMIZE; }
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MINIMIZE { return MINIMIZE; }
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BOTTOM { return BOTTOM; }
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NOTITLE { return NOTITLE; }
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OUTLINE { return OUTLINE; }
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NOFRAME { return NOFRAME; }
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ROOTMENU { return ROOTMENU; }
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DEFAULTSYSMENU { return DEFAULTSYSMENU; }
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SYSMENU { return SYSMENU; }
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SEPARATOR { return SEPARATOR; }
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ATSTART { return ATSTART; }
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ATEND { return ATEND; }
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EXEC { return EXEC; }
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ALWAYSONTOP { return ALWAYSONTOP; }
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DEBUG { return DEBUGOUTPUT; }
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RELOAD { return RELOAD; }
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TRAYICON { return TRAYICON; }
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FORCEEXIT { return FORCEEXIT; }
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SILENTEXIT { return SILENTEXIT; }
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"{" { return LB; }
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"}" { return RB; }
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"\""[^\"\r\n]+"\"" { yylval.sVal = makestr(yytext+1); \
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yylval.sVal[strlen(yylval.sVal)-1] = 0; \
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return STRING; }
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[^ \t\r\n]+ { yylval.sVal = makestr(yytext); \
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return STRING; }
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%%
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/*
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* Run-of-the mill requirement for yacc
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*/
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int
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yywrap (void)
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{
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return 1;
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}
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/*
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* Run a file through the yacc parser
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*/
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int
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parse_file (FILE *file)
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{
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int ret;
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if (!file)
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return 1;
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yylineno = 1;
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yyin = file;
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ret = yyparse ();
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yylex_destroy ();
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return ret;
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}
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