930 lines
24 KiB
C
930 lines
24 KiB
C
/* -*-C-*-
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*
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* Copyright 1994 Martin von Loewis
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* Copyright 1998 Bertho A. Stultiens (BS)
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*
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* 20-Jun-1998 BS - Changed the filename conversion. Filenames are
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* case-sensitive inder *nix, but not under dos.
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* default behaviour is to convert to lower case.
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* - All backslashes are converted to forward and
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* both single and double slash is recognized as
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* MS/Borland does.
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* - Fixed a bug in 'yywf' case that prevented
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* double quoted names to be scanned propperly.
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*
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* 19-May-1998 BS - Started to build a preprocessor.
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* - Changed keyword processing completely to
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* table-lookups.
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*
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* 20-Apr-1998 BS - Added ';' comment stripping
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*
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* 17-Apr-1998 BS - Made the win32 keywords optional when compiling in
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* 16bit mode
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*
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* 15-Apr-1998 BS - Changed string handling to include escapes
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* - Added unicode string handling (no codepage
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* translation though).
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* - 'Borrowed' the main idea of string scanning from
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* the flex manual pages.
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* - Added conditional handling of scanning depending
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* on the state of the parser. This was mainly required
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* to distinguish a file to load or raw data that
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* follows. MS's definition of filenames is rather
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* complex... It can be unquoted or double quoted. If
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* double quoted, then the '\\' char is not automatically
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* escaped according to Borland's rc compiler, but it
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* accepts both "\\path\\file.rc" and "\path\file.rc".
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* This makes life very hard! I go for the escaped
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* version, as this seems to be the documented way...
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* - Single quoted strings are now parsed and converted
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* here.
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* - Added comment stripping. The implementation is
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* 'borrowed' from the flex manpages.
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* - Rebuild string processing so that it may contain
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* escaped '\0'.
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*/
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/* Exclusive rules when looking for a filename */
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%x yywf
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%x yywf_s
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/* Exclusive string handling */
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%x yystr
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/* Exclusive unicode string handling */
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%x yylstr
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/* Exclusive rcdata single quoted data handling */
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%x yyrcd
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/* Exclusive comment eating... */
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%x comment
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/* Preprocessor exclusives */
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%x pp_incl
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%x pp_def
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%x pp_undef
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%x pp_if
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%x pp_ifdef
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%x pp_ifndef
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%x pp_elif
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%x pp_else
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%x pp_endif
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%x pp_error
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/* Set when accumulating #define's expansion text */
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%x pp_def_s
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/* Set when processing function type defines */
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%x pp_ignore
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/* Set when need to strip to eol */
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%x pp_ignore_eol
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/* Set when handling a false #if case */
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%x pp_false
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/* Set when stripping c-junk */
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%x pp_strips
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%x pp_stripp
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%x pp_stripp_final
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/*%option stack*/
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%option never-interactive
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/*%option noyywrap */
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/* Some shortcut definitions */
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ws [ \f\t\r]
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cident [a-zA-Z_][0-9a-zA-Z_]*
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%{
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#if !defined(YY_FLEX_MAJOR_VERSION) || (1000 * YY_FLEX_MAJOR_VERSION + YY_FLEX_MINOR_VERSION < 2005)
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#error Must use flex version 2.5.1 or higher (yy_scan_* routines are required).
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#endif
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/*#define LEX_DEBUG*/
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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 <ctype.h>
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#include <config.h>
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#include "wrc.h"
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#include "utils.h"
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#include "preproc.h"
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#include "parser.h"
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#include "newstruc.h"
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#include "y.tab.h"
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#define YY_USE_PROTOS
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#define YY_NO_UNPUT
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/* Always update the current character position within a line */
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#define YY_USER_ACTION char_number+=yyleng;
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raw_data_t *new_raw_data(void);
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void addcchar(char c);
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void addwchar(short s);
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string_t *get_buffered_cstring(void);
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string_t *get_buffered_wstring(void);
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string_t *make_string(char *s);
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string_t *make_filename(char *s, int len);
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int line_number = 1; /* The current line */
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int char_number = 1; /* The current char pos within the line */
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static char cbuffer[1024]; /* Buffers for string collection */
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static int cbufidx;
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static short wbuffer[1024];
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static int wbufidx;
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static int want_nl = 0; /* Set when newline needs to go to parser */
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static int want_ident = 0; /* Set is #ifdef, #ifndef or defined is seen */
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static int stripslevel = 0; /* Count {} during pp_strips mode */
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static int stripplevel = 0; /* Count () during pp_strips mode */
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static char *substtext = NULL; /* Holds the substition text while getting a define */
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static int cjunk_tagline; /* Where did we start stripping (helps error tracking) */
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#ifdef YY_USE_STACK
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void push_to(int start) { yy_push_state(start); }
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void pop_start(void) { yy_pop_state(start); }
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#else
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#define MAXSTARTSTACK 32
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static int startstack[MAXSTARTSTACK];
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static int startstackidx = 0;
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void push_to(int start)
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{
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if(yydebug)
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printf("push_to(%d): %d -> %d\n", line_number, YY_START, start);
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if(startstackidx >= MAXSTARTSTACK-1)
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internal_error(__FILE__, __LINE__, "Start condition stack overflow");
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startstack[startstackidx++] = YY_START;
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BEGIN(start);
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}
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void pop_start(void)
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{
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if(yydebug)
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printf("pop_start(%d): %d <- %d\n", line_number, startstack[startstackidx-1], YY_START);
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if(startstackidx <= 0)
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internal_error(__FILE__, __LINE__, "Start condition stack underflow");
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--startstackidx;
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BEGIN(startstack[startstackidx]);
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}
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#endif
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struct bufferstackentry {
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YY_BUFFER_STATE bufferstate; /* Buffer to switch back to */
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struct pp_entry *define; /* Points to expanding define
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or NULL if handling includes
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*/
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int line_number; /* Line that we were handling */
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int char_number; /* The current position */
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char *filename; /* Filename that we were handling */
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};
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#define MAXBUFFERSTACK 128
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static struct bufferstackentry bufferstack[MAXBUFFERSTACK];
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static int bufferstackidx = 0;
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void push_buffer(YY_BUFFER_STATE buf, struct pp_entry *ppp, char *filename)
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{
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if(yydebug)
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printf("push_buffer: %p %p %p\n", buf, ppp, filename);
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if(bufferstackidx >= MAXBUFFERSTACK-1)
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internal_error(__FILE__, __LINE__, "Buffer stack overflow");
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memset(&bufferstack[bufferstackidx], 0, sizeof(bufferstack[0]));
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bufferstack[bufferstackidx].bufferstate = buf;
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bufferstack[bufferstackidx].define = ppp;
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if(ppp)
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ppp->expanding = 1;
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else if(filename)
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{
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/* These will track the yyerror to the correct file and line */
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bufferstack[bufferstackidx].line_number = line_number;
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bufferstack[bufferstackidx].char_number = char_number;
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line_number = 1;
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char_number = 1;
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bufferstack[bufferstackidx].filename = input_name;
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input_name = filename;
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}
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else
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internal_error(__FILE__, __LINE__, "Pushing buffer without knowing where to go to");
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bufferstackidx++;
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}
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YY_BUFFER_STATE pop_buffer(void)
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{
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if(bufferstackidx <= 0)
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return (YY_BUFFER_STATE)0;
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bufferstackidx--;
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if(bufferstack[bufferstackidx].define)
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bufferstack[bufferstackidx].define->expanding = 0;
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else
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{
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line_number = bufferstack[bufferstackidx].line_number;
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char_number = bufferstack[bufferstackidx].char_number;
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input_name = bufferstack[bufferstackidx].filename;
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fclose(yyin);
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}
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if(yydebug)
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printf("pop_buffer: %p %p (%d, %d) %p\n",
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bufferstack[bufferstackidx].bufferstate,
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bufferstack[bufferstackidx].define,
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bufferstack[bufferstackidx].line_number,
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bufferstack[bufferstackidx].char_number,
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bufferstack[bufferstackidx].filename);
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yy_switch_to_buffer(bufferstack[bufferstackidx].bufferstate);
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return bufferstack[bufferstackidx].bufferstate;
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}
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void do_include(char *name, int namelen)
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{
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char *cpy = (char *)xmalloc(namelen);
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strcpy(cpy, name+1); /* strip leading " or < */
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cpy[namelen-2] = '\0'; /* strip trailing " or > */
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if((yyin = open_include(cpy, name[0] == '"')) == NULL)
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yyerror("Unable to open include file %s", cpy);
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push_buffer(YY_CURRENT_BUFFER, NULL, cpy);
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yy_switch_to_buffer(yy_create_buffer(yyin, YY_BUF_SIZE));
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}
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struct keyword {
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char *keyword;
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int token;
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int isextension;
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int needcase;
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int alwayskeyword;
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};
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static struct keyword keywords[] = {
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{ "ACCELERATORS", ACCELERATORS, 0, 0, 0},
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{ "ALT", ALT, 0, 0, 0},
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{ "ASCII", ASCII, 0, 0, 0},
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{ "AUTO3STATE", AUTO3STATE, 1, 0, 0},
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{ "AUTOCHECKBOX", AUTOCHECKBOX, 1, 0, 0},
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{ "AUTORADIOBUTTON", AUTORADIOBUTTON, 1, 0, 0},
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{ "BEGIN", tBEGIN, 0, 0, 1},
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{ "BITMAP", tBITMAP, 0, 0, 0},
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{ "BLOCK", BLOCK, 0, 0, 1},
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{ "BUTTON", BUTTON, 1, 0, 0},
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{ "CAPTION", CAPTION, 0, 0, 0},
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{ "CHARACTERISTICS", CHARACTERISTICS, 1, 0, 0},
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{ "CHECKBOX", CHECKBOX, 0, 0, 0},
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{ "CHECKED", CHECKED, 0, 0, 0},
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{ "CLASS", CLASS, 0, 0, 0},
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{ "COMBOBOX", COMBOBOX, 0, 0, 0},
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{ "CONTROL", CONTROL, 0, 0, 0},
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{ "CTEXT", CTEXT, 0, 0, 0},
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{ "CURSOR", CURSOR, 0, 0, 0},
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{ "defined", tDEFINED, 0, 1, 1},
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{ "DEFPUSHBUTTON", DEFPUSHBUTTON, 0, 0, 1},
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{ "DIALOG", DIALOG, 0, 0, 0},
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{ "DIALOGEX", DIALOGEX, 1, 0, 0},
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{ "DISCARDABLE", DISCARDABLE, 0, 0, 0},
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{ "EDITTEXT", EDITTEXT, 0, 0, 0},
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{ "END", tEND, 0, 0, 1},
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{ "EXSTYLE", EXSTYLE, 0, 0, 0},
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{ "extern", tEXTERN, 0, 1, 1},
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{ "FILEFLAGS", FILEFLAGS, 0, 0, 0},
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{ "FILEFLAGSMASK", FILEFLAGSMASK, 0, 0, 0},
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{ "FILEOS", FILEOS, 0, 0, 0},
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{ "FILESUBTYPE", FILESUBTYPE, 0, 0, 0},
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{ "FILETYPE", FILETYPE, 0, 0, 0},
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{ "FILEVERSION", FILEVERSION, 0, 0, 0},
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{ "FIXED", tFIXED, 0, 0, 0},
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{ "FONT", FONT, 0, 0, 0},
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{ "GRAYED", GRAYED, 0, 0, 0},
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{ "GROUPBOX", GROUPBOX, 0, 0, 0},
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{ "HELP", HELP, 0, 0, 0},
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{ "ICON", ICON, 0, 0, 0},
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{ "IMPURE", IMPURE, 0, 0, 0},
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{ "INACTIVE", INACTIVE, 0, 0, 0},
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{ "LANGUAGE", LANGUAGE, 1, 0, 1},
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{ "LISTBOX", LISTBOX, 0, 0, 0},
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{ "LOADONCALL", LOADONCALL, 0, 0, 0},
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{ "LTEXT", LTEXT, 0, 0, 0},
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{ "MENU", MENU, 0, 0, 0},
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{ "MENUBARBREAK", MENUBARBREAK, 0, 0, 0},
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{ "MENUBREAK", MENUBREAK, 0, 0, 0},
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{ "MENUEX", MENUEX, 1, 0, 0},
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{ "MENUITEM", MENUITEM, 0, 0, 0},
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{ "MESSAGETABLE", MESSAGETABLE, 1, 0, 0},
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{ "MOVEABLE", MOVEABLE, 0, 0, 0},
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{ "NOINVERT", NOINVERT, 0, 0, 0},
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{ "NOT", NOT, 0, 0, 0},
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{ "POPUP", POPUP, 0, 0, 0},
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{ "PRELOAD", PRELOAD, 0, 0, 0},
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{ "PRODUCTVERSION", PRODUCTVERSION, 0, 0, 0},
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{ "PURE", tPURE, 0, 0, 0},
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{ "PUSHBUTTON", PUSHBUTTON, 0, 0, 0},
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{ "RADIOBUTTON", RADIOBUTTON, 0, 0, 0},
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{ "RCDATA", RCDATA, 0, 0, 0},
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{ "RTEXT", RTEXT, 0, 0, 0},
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{ "SCROLLBAR", SCROLLBAR, 0, 0, 0},
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{ "SEPARATOR", SEPARATOR, 0, 0, 0},
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{ "SHIFT", SHIFT, 0, 0, 0},
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{ "STATE3", STATE3, 1, 0, 0},
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{ "STRING", tSTRING, 0, 0, 0},
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{ "STRINGTABLE", STRINGTABLE, 0, 0, 1},
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{ "STYLE", STYLE, 0, 0, 0},
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{ "TOOLBAR", TOOLBAR, 1, 0, 0},
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{ "typedef", tTYPEDEF, 0, 1, 1},
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{ "VALUE", VALUE, 0, 0, 0},
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{ "VERSION", VERSION, 1, 0, 0},
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{ "VERSIONINFO", VERSIONINFO, 0, 0, 0},
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{ "VIRTKEY", VIRTKEY, 0, 0, 0}
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};
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#define NKEYWORDS (sizeof(keywords)/sizeof(keywords[0]))
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#define KWP(p) ((struct keyword *)(p))
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int kw_cmp_func(const void *s1, const void *s2)
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{
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int ret;
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ret = strcasecmp(KWP(s1)->keyword, KWP(s2)->keyword);
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if(!ret && (KWP(s1)->needcase || KWP(s2)->needcase))
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return strcmp(KWP(s1)->keyword, KWP(s2)->keyword);
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else
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return ret;
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}
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#define KW_BSEARCH
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#define DO_SORT
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struct keyword *iskeyword(char *kw)
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{
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struct keyword *kwp;
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struct keyword key;
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key.keyword = kw;
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key.needcase = 0;
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#ifdef DO_SORT
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{
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/* Make sure that it is sorted for bsearsh */
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static int sorted = 0;
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if(!sorted)
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{
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qsort(keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func);
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sorted = 1;
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}
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}
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#endif
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#ifdef KW_BSEARCH
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kwp = bsearch(&key, keywords, NKEYWORDS, sizeof(keywords[0]), kw_cmp_func);
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#else
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{
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int i;
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for(i = 0; i < NKEYWORDS; i++)
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{
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if(!kw_cmp_func(&key, &keywords[i]))
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break;
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}
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if(i < NKEYWORDS)
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kwp = &keywords[i];
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else
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kwp = NULL;
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}
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#endif
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#ifdef LEX_DEBUG
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if(kwp && !strcmp(kwp->keyword, "LANGUAGE"))
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printf("Got Language\n");
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#endif
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if(kwp == NULL || (kwp->isextension && !extensions))
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return NULL;
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else
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return kwp;
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}
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void add_to_substtext(char *text, int len)
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{
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if(!substtext)
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{
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substtext = xstrdup(text);
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}
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else
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{
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substtext = (char *)xrealloc(substtext, strlen(substtext)+len+1);
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strcat(substtext, text);
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}
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}
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%}
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%%
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/* #include handling */
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^{ws}*#{ws}*include{ws}* push_to(pp_incl);
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<pp_incl>\<[^\n\>]+\> do_include(yytext, yyleng); pop_start();
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<pp_incl>\"[^\n\>]+\" do_include(yytext, yyleng); pop_start();
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<pp_incl>. yyerror("Malformed #include");
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/* #define handling */
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^{ws}*#{ws}*define{ws}* push_to(pp_def);
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<pp_def>{cident} {
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set_define(yytext);
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push_to(pp_def_s);
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}
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<pp_def>{cident}\( push_to(pp_ignore); /* Ignore function-like defines for now*/
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<pp_def>. yyerror("Malformed #define");
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<pp_ignore,pp_def_s>[^\/\\\n]* {
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if(YY_START == pp_def_s)
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add_to_substtext(yytext, yyleng);
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}
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<pp_ignore,pp_def_s>\/[^\/\*][^\/\\\n]* { /* Comment is handled in normal handling */
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if(YY_START == pp_def_s)
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add_to_substtext(yytext, yyleng);
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}
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<pp_ignore,pp_def_s>\\{ws}*\n line_number++; char_number = 1; /* Line continuation */
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<pp_ignore,pp_def_s>\n {
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if(YY_START == pp_def_s)
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{
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add_define(substtext ? substtext : "");
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free(substtext);
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substtext = NULL;
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}
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line_number++;
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char_number = 1;
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pop_start();
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pop_start();
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}
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/* #undef handling */
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^{ws}*#{ws}*undef{ws}* push_to(pp_undef);
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<pp_undef>{cident} {
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del_define(yytext);
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pop_start();
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/*push_to(pp_ignore);*/
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}
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/* Conditional handling */
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<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*if{ws}* {
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if(YY_START == pp_false)
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{
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if(yydebug)
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printf("(%d)#if ignored\n", line_number);
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push_if(0, 0, 1);
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push_to(pp_ignore_eol);
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}
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else
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{
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push_to(INITIAL);
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want_nl = 1;
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return tIF;
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}
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}
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<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*ifdef{ws}* {
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if(YY_START == pp_false)
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{
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if(yydebug)
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printf("(%d)#ifdef ignored\n", line_number);
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push_if(0, 0, 1);
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push_to(pp_ignore_eol);
|
|
}
|
|
else
|
|
{
|
|
push_to(INITIAL);
|
|
want_nl = 1;
|
|
want_ident = 1;
|
|
return tIFDEF;
|
|
}
|
|
}
|
|
<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*ifndef{ws}* {
|
|
if(YY_START == pp_false)
|
|
{
|
|
if(yydebug)
|
|
printf("(%d)#ifndef ignored\n", line_number);
|
|
push_if(0, 0, 1);
|
|
push_to(pp_ignore_eol);
|
|
}
|
|
else
|
|
{
|
|
push_to(INITIAL);
|
|
want_nl = 1;
|
|
want_ident = 1;
|
|
return tIFNDEF;
|
|
}
|
|
}
|
|
<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*elif{ws}* {
|
|
if(!isnevertrue_if())
|
|
{
|
|
push_to(INITIAL);
|
|
want_nl = 1;
|
|
return tELIF;
|
|
}
|
|
else if(YY_START == pp_false)
|
|
push_to(pp_ignore_eol);
|
|
if(yydebug)
|
|
printf("(%d)#elif ignored\n", line_number);
|
|
}
|
|
<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*else{ws}* {
|
|
if(!isnevertrue_if())
|
|
{
|
|
push_to(INITIAL);
|
|
want_nl = 1;
|
|
return tELSE;
|
|
}
|
|
if(yydebug)
|
|
printf("(%d)#else ignored\n", line_number);
|
|
}
|
|
<INITIAL,pp_strips,pp_stripp,pp_false>^{ws}*#{ws}*endif{ws}* {
|
|
if(!isnevertrue_if())
|
|
{
|
|
want_nl = 1;
|
|
return tENDIF;
|
|
}
|
|
else
|
|
{
|
|
if(yydebug)
|
|
printf("(%d)#endif ignored\n", line_number);
|
|
pop_if();
|
|
}
|
|
}
|
|
|
|
/* The error directive */
|
|
^{ws}*#{ws}*error{ws}* push_to(pp_error);
|
|
<pp_error>[^\n]* yyerror("Error directive: %s", yytext);
|
|
|
|
/* preprocessor junk */
|
|
^{ws}*#{ws}*pragma[^\n]* ; /* Ignore #pragma */
|
|
^{ws}*#{ws}*line[^\n]* ; /* Ignore #line */
|
|
/* We'll get an error on malformed #xxx statements
|
|
* by not recognising '#' at all. This helps tracking
|
|
* preprocessor errors.
|
|
*/
|
|
/*^{ws}*#{ws}* ; Ignore # */
|
|
|
|
<pp_strips>\{ stripslevel++;
|
|
<pp_strips>\} stripslevel--;
|
|
<pp_strips>; if(!stripslevel) pop_start();
|
|
<pp_strips>[^\{\};\n#]* ; /* Ignore rest */
|
|
|
|
<pp_stripp>\( stripplevel++;
|
|
<pp_stripp>\) {
|
|
stripplevel--;
|
|
if(!stripplevel)
|
|
{
|
|
pop_start();
|
|
push_to(pp_stripp_final);
|
|
}
|
|
}
|
|
<pp_stripp>[^\(\);\n#]* ; /* Ignore rest */
|
|
|
|
<pp_stripp_final>{ws}* ; /* Ignore */
|
|
<pp_stripp_final>; pop_start(); /* Kill the semicolon */
|
|
<pp_stripp_final>\n line_number++; char_number = 1; pop_start();
|
|
<pp_stripp_final>. yyless(0); pop_start();
|
|
|
|
<pp_false>. ; /* Ignore everything except #xxx during false #if state */
|
|
|
|
<pp_ignore_eol>[^\n]* pop_start();
|
|
|
|
/* These are special cases due to filename scanning */
|
|
<yywf>[Dd][Ii][Ss][Cc][Aa][Rr][Dd][Aa][Bb][Ll][Ee] return DISCARDABLE;
|
|
<yywf>[Ff][Ii][Xx][Ee][Dd] return tFIXED;
|
|
<yywf>[Ii][Mm][Pp][Uu][Rr][Ee] return IMPURE;
|
|
<yywf>[Mm][Oo][Vv][Ee][Aa][Bb][Ll][Ee] return MOVEABLE;
|
|
<yywf>[Ll][Oo][Aa][Dd][Oo][Nn][Cc][Aa][Ll][Ll] return LOADONCALL;
|
|
<yywf>[Pp][Rr][Ee][Ll][Oo][Aa][Dd] return PRELOAD;
|
|
<yywf>[Pp][Uu][Rr][Ee] return tPURE;
|
|
|
|
\{ return tBEGIN;
|
|
\} return tEND;
|
|
|
|
[0-9]+[lL]? { yylval.num = atoi(yytext); return NUMBER; }
|
|
0[xX][0-9A-Fa-f]+[lL]? { yylval.num = strtoul(yytext,0,16); return NUMBER; }
|
|
0[oO][0-7]+ { yylval.num = strtoul(yytext+2,0,8); return NUMBER; }
|
|
[A-Za-z_0-9]+ {
|
|
struct keyword *token;
|
|
struct pp_entry *ppp;
|
|
|
|
want_rscname = 0;
|
|
|
|
if(want_ident)
|
|
{
|
|
/* Prevent preprocessor subst */
|
|
want_ident = 0;
|
|
yylval.str = make_string(yytext);
|
|
#ifdef LEX_DEBUG
|
|
printf("want IDENT (%s, %d, %d): <%s>\n", input_name, line_number, char_number, yytext);
|
|
#endif
|
|
return IDENT;
|
|
}
|
|
else if((ppp = pp_lookup(yytext)) != NULL)
|
|
{
|
|
/* Do preprocessor substitution,
|
|
* but expand only if macro is not
|
|
* already expanding.
|
|
*/
|
|
if(!ppp->expanding)
|
|
{
|
|
#ifdef LEX_DEBUG
|
|
printf("expand IDENT (%s, %d, %d): <%s>\n", input_name, line_number, char_number, yytext);
|
|
#endif
|
|
push_buffer(YY_CURRENT_BUFFER, ppp, NULL);
|
|
yy_scan_string(ppp->subst);
|
|
}
|
|
}
|
|
else if((token = iskeyword(yytext)) != NULL
|
|
&& !(!token->alwayskeyword && want_rscname))
|
|
{
|
|
switch(token->token)
|
|
{
|
|
case tDEFINED:
|
|
want_ident = 1;
|
|
break;
|
|
/*case RCDATA:*/
|
|
case CURSOR:
|
|
case tBITMAP:
|
|
case MESSAGETABLE:
|
|
push_to(yywf);
|
|
break;
|
|
case FONT:
|
|
case ICON:
|
|
if(!indialog)
|
|
push_to(yywf);
|
|
break;
|
|
case DIALOG:
|
|
case DIALOGEX:
|
|
indialog = 1;
|
|
break;
|
|
}
|
|
return token->token;
|
|
}
|
|
else
|
|
{
|
|
yylval.str = make_string(yytext);
|
|
#ifdef LEX_DEBUG
|
|
printf("%s IDENT (%s, %d, %d): <%s>\n",
|
|
want_rscname ? "rscname" : "just",
|
|
input_name,
|
|
line_number,
|
|
char_number,
|
|
yytext);
|
|
#endif
|
|
return IDENT;
|
|
}
|
|
}
|
|
\|\| return LOGOR;
|
|
\&\& return LOGAND;
|
|
\=\= return EQ;
|
|
\!\= return NE;
|
|
\<\= return LTE;
|
|
\>\= return GTE;
|
|
|
|
<yywf>[^ \f\t\r\n\"]* { pop_start(); yylval.str = make_filename(yytext, yyleng); return FILENAME; }
|
|
<yywf>\" push_to(yywf_s);
|
|
<yywf_s>[^\"\n]*\" { pop_start(); pop_start(); yylval.str = make_filename(yytext, yyleng-1); return FILENAME; }
|
|
<yywf_s>\n yyerror("Newline in filename");
|
|
|
|
L\" {
|
|
push_to(yylstr);
|
|
wbufidx = 0;
|
|
if(!win32)
|
|
yywarning("16bit resource contains unicode strings\n");
|
|
}
|
|
<yylstr>\" {
|
|
pop_start();
|
|
yylval.str = get_buffered_wstring();
|
|
return tSTRING;
|
|
}
|
|
<yylstr>\n yyerror("Unterminated string");
|
|
<yylstr>\\[0-7]{1,6} { /* octal escape sequence */
|
|
int result;
|
|
result = strtol(yytext+1, 0, 8);
|
|
if ( result > 0xffff )
|
|
yyerror("Character constant out of range");
|
|
addwchar((short)result);
|
|
}
|
|
<yylstr>\\x[0-9a-fA-F]{4} { /* hex escape sequence */
|
|
int result;
|
|
result = strtol(yytext+2, 0, 16);
|
|
addwchar((short)result);
|
|
}
|
|
<yylstr>\\[0-9]+ yyerror("Bad escape secuence");
|
|
<yylstr>\\a addwchar('\a');
|
|
<yylstr>\\b addwchar('\b');
|
|
<yylstr>\\f addwchar('\f');
|
|
<yylstr>\\n addwchar('\n');
|
|
<yylstr>\\r addwchar('\r');
|
|
<yylstr>\\t addwchar('\t');
|
|
<yylstr>\\v addwchar('\v');
|
|
<yylstr>\\(.|\n) addwchar(yytext[1]);
|
|
<yylstr>[^\\\n\"]+ {
|
|
char *yptr = yytext;
|
|
while(*yptr) /* FIXME: codepage translation */
|
|
addwchar(*yptr++ & 0xff);
|
|
}
|
|
|
|
\" {
|
|
push_to(yystr);
|
|
cbufidx = 0;
|
|
}
|
|
<yystr>\" {
|
|
pop_start();
|
|
yylval.str = get_buffered_cstring();
|
|
return tSTRING;
|
|
}
|
|
<yystr>\n yyerror("Unterminated string");
|
|
<yystr>\\[0-7]{1,3} { /* octal escape sequence */
|
|
int result;
|
|
result = strtol(yytext+1, 0, 8);
|
|
if ( result > 0xff )
|
|
yyerror("Character constant out of range");
|
|
addcchar((char)result);
|
|
}
|
|
<yystr>\\x[0-9a-fA-F]{2} { /* hex escape sequence */
|
|
int result;
|
|
result = strtol(yytext+2, 0, 16);
|
|
addcchar((char)result);
|
|
}
|
|
<yystr>\\[0-9]+ yyerror("Bad escape secuence");
|
|
<yystr>\\a addcchar('\a');
|
|
<yystr>\\b addcchar('\b');
|
|
<yystr>\\f addcchar('\f');
|
|
<yystr>\\n addcchar('\n');
|
|
<yystr>\\r addcchar('\r');
|
|
<yystr>\\t addcchar('\t');
|
|
<yystr>\\v addcchar('\v');
|
|
<yystr>\\(.|\n) addcchar(yytext[1]);
|
|
<yystr>[^\\\n\"]+ {
|
|
char *yptr = yytext;
|
|
while(*yptr)
|
|
addcchar(*yptr++);
|
|
}
|
|
|
|
|
|
|
|
\' {
|
|
push_to(yyrcd);
|
|
cbufidx = 0;
|
|
}
|
|
<yyrcd>\' {
|
|
pop_start();
|
|
yylval.raw = new_raw_data();
|
|
yylval.raw->size = cbufidx;
|
|
yylval.raw->data = xmalloc(yylval.raw->size);
|
|
memcpy(yylval.raw->data, cbuffer, yylval.raw->size);
|
|
return RAWDATA;
|
|
}
|
|
<yyrcd>[0-9a-fA-F]{2} {
|
|
int result;
|
|
result = strtol(yytext, 0, 16);
|
|
addcchar((char)result);
|
|
}
|
|
<yyrcd>{ws}+ ; /* Ignore space */
|
|
<yyrcd>. yyerror("Malformed data-line");
|
|
|
|
<INITIAL,pp_ignore,pp_def_s>"/*" push_to(comment); /* Eat comment */
|
|
<comment>[^*\n]* ;
|
|
<comment>"*"+[^*/\n]* ;
|
|
<comment>\n line_number++; char_number = 1;
|
|
<comment>"*"+"/" pop_start();
|
|
|
|
;[^\n]* ; /* Eat comment */
|
|
<INITIAL,pp_ignore,pp_def_s>"//"[^\n]* ; /* Eat comment */
|
|
|
|
<INITIAL,yywf,pp_false,pp_strips,pp_stripp>\n {
|
|
if(YY_START == yywf)
|
|
pop_start();
|
|
line_number++;
|
|
char_number = 1;
|
|
if(want_nl)
|
|
{
|
|
want_nl = 0;
|
|
return tNL;
|
|
}
|
|
}
|
|
<INITIAL,yywf>{ws}+ ; /* Eat whitespace */
|
|
|
|
<INITIAL>. return yytext[0];
|
|
<<EOF>> {
|
|
YY_BUFFER_STATE b = YY_CURRENT_BUFFER;
|
|
if(!pop_buffer())
|
|
{
|
|
if(YY_START == pp_strips || YY_START == pp_stripp || YY_START == pp_stripp_final)
|
|
yyerror("Unexpected end of file during c-junk scanning (started at %d)", cjunk_tagline);
|
|
else
|
|
yyterminate();
|
|
}
|
|
yy_delete_buffer(b);
|
|
}
|
|
%%
|
|
|
|
#ifndef yywrap
|
|
int yywrap(void)
|
|
{
|
|
#if 0
|
|
if(bufferstackidx > 0)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
/* These dup functions copy the enclosed '\0' from
|
|
* the resource string.
|
|
*/
|
|
void addcchar(char c)
|
|
{
|
|
if(cbufidx >= sizeof(cbuffer))
|
|
internal_error(__FILE__, __LINE__, "Character buffer overflow");
|
|
cbuffer[cbufidx++] = c;
|
|
}
|
|
|
|
void addwchar(short s)
|
|
{
|
|
if(wbufidx >= sizeof(wbuffer))
|
|
internal_error(__FILE__, __LINE__, "Wide character buffer overflow");
|
|
wbuffer[wbufidx++] = (short)(s & 0xff);
|
|
}
|
|
|
|
string_t *get_buffered_cstring(void)
|
|
{
|
|
string_t *str = new_string();
|
|
str->size = cbufidx;
|
|
str->type = str_char;
|
|
str->str.cstr = (char *)xmalloc(cbufidx+1);
|
|
memcpy(str->str.cstr, cbuffer, cbufidx);
|
|
str->str.cstr[cbufidx] = '\0';
|
|
/* printf("got cstring \"%s\"\n", str->str.cstr); */
|
|
return str;
|
|
}
|
|
|
|
string_t *get_buffered_wstring(void)
|
|
{
|
|
string_t *str = new_string();
|
|
str->size = wbufidx;
|
|
str->type = str_unicode;
|
|
str->str.wstr = (short *)xmalloc(2*(wbufidx+1));
|
|
memcpy(str->str.wstr, wbuffer, wbufidx);
|
|
str->str.wstr[wbufidx] = 0;
|
|
return str;
|
|
}
|
|
|
|
string_t *make_string(char *s)
|
|
{
|
|
string_t *str = new_string();
|
|
str->size = strlen(s);
|
|
str->type = str_char;
|
|
str->str.cstr = (char *)xmalloc(str->size+1);
|
|
memcpy(str->str.cstr, s, str->size+1);
|
|
return str;
|
|
}
|
|
|
|
string_t *make_filename(char *s, int len)
|
|
{
|
|
char *cptr;
|
|
string_t *str = new_string();
|
|
|
|
str->size = len;
|
|
str->type = str_char;
|
|
str->str.cstr = (char *)xmalloc(str->size+1);
|
|
memcpy(str->str.cstr, s, str->size);
|
|
str->str.cstr[str->size] = '\0';
|
|
|
|
/* Remove escaped backslash and convert to forward */
|
|
cptr = str->str.cstr;
|
|
for(cptr = str->str.cstr; (cptr = strchr(cptr, '\\')) != NULL; cptr++)
|
|
{
|
|
if(cptr[1] == '\\')
|
|
{
|
|
memmove(cptr, cptr+1, strlen(cptr));
|
|
str->size--;
|
|
}
|
|
*cptr = '/';
|
|
}
|
|
|
|
/* Convert to lower case. Seems to be reasonable to do */
|
|
for(cptr = str->str.cstr; !leave_case && *cptr; cptr++)
|
|
{
|
|
*cptr = tolower(*cptr);
|
|
}
|
|
return str;
|
|
}
|
|
|
|
/* Called from the parser to signal filename request */
|
|
void set_yywf(void)
|
|
{
|
|
push_to(yywf);
|
|
}
|
|
|
|
/* Called from the parser to signal preprocessor if case */
|
|
void set_pp_ignore(int state)
|
|
{
|
|
if(state)
|
|
push_to(pp_false);
|
|
else
|
|
pop_start();
|
|
}
|
|
|
|
/* Called from the parser to kill c-junk */
|
|
void strip_til_semicolon(void)
|
|
{
|
|
cjunk_tagline = line_number;
|
|
push_to(pp_strips);
|
|
}
|
|
|
|
void strip_til_parenthesis(void)
|
|
{
|
|
cjunk_tagline = line_number;
|
|
stripplevel = 1; /* One scanned already */
|
|
push_to(pp_stripp);
|
|
}
|
|
|
|
|