Sweden-Number/tools/wmc/mcl.c

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/*
* Wine Message Compiler lexical scanner
*
* Copyright 2000 Bertho A. Stultiens (BS)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <assert.h>
#include <string.h>
#include "utils.h"
#include "wmc.h"
#include "lang.h"
#include "mcy.tab.h"
/*
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* Keywords are case insensitive. All normal input is treated as
* being in codepage iso-8859-1 for ascii input files (unicode
* page 0) and as equivalent unicode if unicode input is selected.
* All normal input, which is not part of a message text, is
* enforced to be unicode page 0. Otherwise an error will be
* generated. The normal file data should only be ASCII because
* that is the basic definition of the grammar.
*
* Byteorder or unicode input is determined automatically by
* reading the first 8 bytes and checking them against unicode
* page 0 byteorder (hibyte must be 0).
* -- FIXME --
* Alternatively, the input is checked against a special byte
* sequence to identify the file.
* -- FIXME --
*
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*
* Keywords:
* Codepages
* Facility
* FacilityNames
* LanguageNames
* MessageId
* MessageIdTypedef
* Severity
* SeverityNames
* SymbolicName
*
* Default added identifiers for classes:
* SeverityNames:
* Success = 0x0
* Informational = 0x1
* Warning = 0x2
* Error = 0x3
* FacilityNames:
* System = 0x0FF
* Application = 0xFFF
*
* The 'Codepages' keyword is a wmc extension.
*/
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static const WCHAR ustr_application[] = { 'A', 'p', 'p', 'l', 'i', 'c', 'a', 't', 'i', 'o', 'n', 0 };
static const WCHAR ustr_codepages[] = { 'C', 'o', 'd', 'e', 'p', 'a', 'g', 'e', 's', 0 };
static const WCHAR ustr_english[] = { 'E', 'n', 'g', 'l', 'i', 's', 'h', 0 };
static const WCHAR ustr_error[] = { 'E', 'r', 'r', 'o', 'r', 0 };
static const WCHAR ustr_facility[] = { 'F', 'a', 'c', 'i', 'l', 'i', 't', 'y', 0 };
static const WCHAR ustr_facilitynames[] = { 'F', 'a', 'c', 'i', 'l', 'i', 't', 'y', 'N', 'a', 'm', 'e', 's', 0 };
static const WCHAR ustr_informational[] = { 'I', 'n', 'f', 'o', 'r', 'm', 'a', 't', 'i', 'o', 'n', 'a', 'l', 0 };
static const WCHAR ustr_language[] = { 'L', 'a', 'n', 'g', 'u', 'a', 'g', 'e', 0};
static const WCHAR ustr_languagenames[] = { 'L', 'a', 'n', 'g', 'u', 'a', 'g', 'e', 'N', 'a', 'm', 'e', 's', 0};
static const WCHAR ustr_messageid[] = { 'M', 'e', 's', 's', 'a', 'g', 'e', 'I', 'd', 0 };
static const WCHAR ustr_messageidtypedef[] = { 'M', 'e', 's', 's', 'a', 'g', 'e', 'I', 'd', 'T', 'y', 'p', 'e', 'd', 'e', 'f', 0 };
static const WCHAR ustr_outputbase[] = { 'O', 'u', 't', 'p', 'u', 't', 'B', 'a', 's', 'e', 0 };
static const WCHAR ustr_severity[] = { 'S', 'e', 'v', 'e', 'r', 'i', 't', 'y', 0 };
static const WCHAR ustr_severitynames[] = { 'S', 'e', 'v', 'e', 'r', 'i', 't', 'y', 'N', 'a', 'm', 'e', 's', 0 };
static const WCHAR ustr_success[] = { 'S', 'u', 'c', 'c', 'e', 's', 's', 0 };
static const WCHAR ustr_symbolicname[] = { 'S', 'y', 'm', 'b', 'o', 'l', 'i', 'c', 'N', 'a', 'm', 'e', 0 };
static const WCHAR ustr_system[] = { 'S', 'y', 's', 't', 'e', 'm', 0 };
static const WCHAR ustr_warning[] = { 'W', 'a', 'r', 'n', 'i', 'n', 'g', 0 };
static const WCHAR ustr_msg00001[] = { 'm', 's', 'g', '0', '0', '0', '0', '1', 0 };
/*
* This table is to beat any form of "expression building" to check for
* correct filename characters. It is also used for ident checks.
* FIXME: use it more consistently.
*/
#define CH_SHORTNAME 0x01
#define CH_LONGNAME 0x02
#define CH_IDENT 0x04
#define CH_NUMBER 0x08
/*#define CH_WILDCARD 0x10*/
/*#define CH_DOT 0x20*/
#define CH_PUNCT 0x40
#define CH_INVALID 0x80
static const char char_table[256] = {
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, /* 0x00 - 0x07 */
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, /* 0x08 - 0x0F */
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, /* 0x10 - 0x17 */
0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, /* 0x18 - 0x1F */
0x80, 0x03, 0x80, 0x03, 0x03, 0x03, 0x03, 0x03, /* 0x20 - 0x27 " !"#$%&'" */
0x43, 0x43, 0x10, 0x80, 0x03, 0x03, 0x22, 0x80, /* 0x28 - 0x2F "()*+,-./" */
0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, /* 0x30 - 0x37 "01234567" */
0x0b, 0x0b, 0xc0, 0x80, 0x80, 0x80, 0x80, 0x10, /* 0x38 - 0x3F "89:;<=>?" */
0x03, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x40 - 0x47 "@ABCDEFG" */
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x48 - 0x4F "HIJKLMNO" */
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x50 - 0x57 "PQRSTUVW" */
0x07, 0x07, 0x07, 0x80, 0x80, 0x80, 0x80, 0x07, /* 0x58 - 0x5F "XYZ[\]^_" */
0x03, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x60 - 0x67 "`abcdefg" */
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x68 - 0x6F "hijklmno" */
0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, /* 0x70 - 0x77 "pqrstuvw" */
0x07, 0x07, 0x07, 0x03, 0x80, 0x03, 0x03, 0x80, /* 0x78 - 0x7F "xyz{|}~ " */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0x80 - 0x87 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0x88 - 0x8F */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0x90 - 0x97 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0x98 - 0x9F */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xA0 - 0xA7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xA8 - 0xAF */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xB0 - 0xB7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xB8 - 0xBF */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xC0 - 0xC7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xC8 - 0xCF */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xD0 - 0xD7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xD8 - 0xDF */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xE0 - 0xE7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xE8 - 0xEF */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, /* 0xF0 - 0xF7 */
0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x80, /* 0xF8 - 0xFF */
};
static int isisochar(int ch)
{
return !(ch & (~0xff));
}
static int codepage;
static const union cptable *codepage_def;
void set_codepage(int cp)
{
codepage = cp;
codepage_def = find_codepage(codepage);
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if(!codepage_def && codepage != CP_UTF8)
xyyerror("Codepage %d not found; cannot process\n", codepage);
}
/*
* Input functions
*/
static int nungetstack = 0;
static int allocungetstack = 0;
static char *ungetstack = NULL;
static int ninputbuffer = 0;
static WCHAR *inputbuffer = NULL;
static char *xlatebuffer = NULL;
#define INPUTBUFFER_SIZE 2048 /* Must be larger than 4 and approx. large enough to hold a line */
/*
* Fill the input buffer with *one* line of input.
* The line is '\n' terminated so that scanning
* messages with translation works as expected
* (otherwise we cannot pre-translate because the
* language is first known one line before the
* actual message).
*/
static int fill_inputbuffer(void)
{
int n;
static const char err_fatalread[] = "Fatal: reading input failed";
static int endian = -1;
if(!inputbuffer)
{
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inputbuffer = xmalloc(INPUTBUFFER_SIZE*sizeof(WCHAR));
xlatebuffer = xmalloc(INPUTBUFFER_SIZE);
}
try_again:
if(!unicodein)
{
char *cptr;
cptr = fgets(xlatebuffer, INPUTBUFFER_SIZE, yyin);
if(!cptr && ferror(yyin))
xyyerror(err_fatalread);
else if(!cptr)
return 0;
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if (codepage_def)
n = wine_cp_mbstowcs(codepage_def, 0, xlatebuffer, strlen(xlatebuffer)+1, inputbuffer, INPUTBUFFER_SIZE);
else
n = wine_utf8_mbstowcs(0, xlatebuffer, strlen(xlatebuffer)+1, inputbuffer, INPUTBUFFER_SIZE);
if(n < 0)
internal_error(__FILE__, __LINE__, "Could not translate to unicode (%d)\n", n);
if(n <= 1)
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goto try_again; /* Should not happen */
n--; /* Strip added conversion '\0' from input length */
/*
* FIXME:
* Detect UTF-8 in the first time we read some bytes by
* checking the special sequence "FE..." or something like
* that. I need to check www.unicode.org for details.
*/
}
else
{
if(endian == -1)
{
n = fread(inputbuffer, 1, 8, yyin);
if(n != 8)
{
if(!n && ferror(yyin))
xyyerror(err_fatalread);
else
xyyerror("Fatal: file to short to determine byteorder (should never happen)\n");
}
if(isisochar(inputbuffer[0]) &&
isisochar(inputbuffer[1]) &&
isisochar(inputbuffer[2]) &&
isisochar(inputbuffer[3]))
{
#ifdef WORDS_BIGENDIAN
endian = WMC_BO_BIG;
#else
endian = WMC_BO_LITTLE;
#endif
}
else if(isisochar(BYTESWAP_WORD(inputbuffer[0])) &&
isisochar(BYTESWAP_WORD(inputbuffer[1])) &&
isisochar(BYTESWAP_WORD(inputbuffer[2])) &&
isisochar(BYTESWAP_WORD(inputbuffer[3])))
{
#ifdef WORDS_BIGENDIAN
endian = WMC_BO_LITTLE;
#else
endian = WMC_BO_BIG;
#endif
}
else
xyyerror("Fatal: cannot determine file's byteorder\n");
/* FIXME:
* Determine the file-endian with the leader-bytes
* "FF FE..."; can't remember the exact sequence.
*/
n /= 2;
#ifdef WORDS_BIGENDIAN
if(endian == WMC_BO_LITTLE)
#else
if(endian == WMC_BO_BIG)
#endif
{
inputbuffer[0] = BYTESWAP_WORD(inputbuffer[0]);
inputbuffer[1] = BYTESWAP_WORD(inputbuffer[1]);
inputbuffer[2] = BYTESWAP_WORD(inputbuffer[2]);
inputbuffer[3] = BYTESWAP_WORD(inputbuffer[3]);
}
}
else
{
int i;
n = 0;
for(i = 0; i < INPUTBUFFER_SIZE; i++)
{
int t;
t = fread(&inputbuffer[i], 2, 1, yyin);
if(!t && ferror(yyin))
xyyerror(err_fatalread);
else if(!t && n)
break;
n++;
#ifdef WORDS_BIGENDIAN
if(endian == WMC_BO_LITTLE)
#else
if(endian == WMC_BO_BIG)
#endif
{
if((inputbuffer[i] = BYTESWAP_WORD(inputbuffer[i])) == '\n')
break;
}
else
{
if(inputbuffer[i] == '\n')
break;
}
}
}
}
if(!n)
{
mcy_warning("Re-read line (input was or converted to zilch)\n");
goto try_again; /* Should not happen, but could be due to stdin reading and a signal */
}
ninputbuffer += n;
return 1;
}
static int get_unichar(void)
{
static WCHAR *b = NULL;
char_number++;
if(nungetstack)
return ungetstack[--nungetstack];
if(!ninputbuffer)
{
if(!fill_inputbuffer())
return EOF;
b = inputbuffer;
}
ninputbuffer--;
return (int)(*b++ & 0xffff);
}
static void unget_unichar(int ch)
{
if(ch == EOF)
return;
char_number--;
if(nungetstack == allocungetstack)
{
allocungetstack += 32;
ungetstack = xrealloc(ungetstack, allocungetstack * sizeof(*ungetstack));
}
ungetstack[nungetstack++] = (WCHAR)ch;
}
/*
* Normal character stack.
* Used for number scanning.
*/
static int ncharstack = 0;
static int alloccharstack = 0;
static char *charstack = NULL;
static void empty_char_stack(void)
{
ncharstack = 0;
}
static void push_char(int ch)
{
if(ncharstack == alloccharstack)
{
alloccharstack += 32;
charstack = xrealloc(charstack, alloccharstack * sizeof(*charstack));
}
charstack[ncharstack++] = (char)ch;
}
static int tos_char_stack(void)
{
if(!ncharstack)
return 0;
else
return (int)(charstack[ncharstack-1] & 0xff);
}
static char *get_char_stack(void)
{
return charstack;
}
/*
* Unicode character stack.
* Used for general scanner.
*/
static int nunicharstack = 0;
static int allocunicharstack = 0;
static WCHAR *unicharstack = NULL;
static void empty_unichar_stack(void)
{
nunicharstack = 0;
}
static void push_unichar(int ch)
{
if(nunicharstack == allocunicharstack)
{
allocunicharstack += 128;
unicharstack = xrealloc(unicharstack, allocunicharstack * sizeof(*unicharstack));
}
unicharstack[nunicharstack++] = (WCHAR)ch;
}
#if 0
static int tos_unichar_stack(void)
{
if(!nunicharstack)
return 0;
else
return (int)(unicharstack[nunicharstack-1] & 0xffff);
}
#endif
static WCHAR *get_unichar_stack(void)
{
return unicharstack;
}
/*
* Number scanner
*
* state | ch | next state
* ------+-----------------+--------------------------
* 0 | [0] | 1
* 0 | [1-9] | 4
* 0 | . | error (should never occur)
* 1 | [xX] | 2
* 1 | [0-7] | 3
* 1 | [89a-wyzA-WYZ_] | error invalid digit
* 1 | . | return 0
* 2 | [0-9a-fA-F] | 2
* 2 | [g-zG-Z_] | error invalid hex digit
* 2 | . | return (hex-number) if TOS != [xX] else error
* 3 | [0-7] | 3
* 3 | [89a-zA-Z_] | error invalid octal digit
* 3 | . | return (octal-number)
* 4 | [0-9] | 4
* 4 | [a-zA-Z_] | error invalid decimal digit
* 4 | . | return (decimal-number)
*
* All non-identifier characters [^a-zA-Z_0-9] terminate the scan
* and return the value. This is not entirely correct, but close
* enough (should check punctuators as trailing context, but the
* char_table is not adapted to that and it is questionable whether
* it is worth the trouble).
* All non-iso-8859-1 characters are an error.
*/
static int scan_number(int ch)
{
int state = 0;
int base = 10;
empty_char_stack();
while(1)
{
if(!isisochar(ch))
xyyerror("Invalid digit\n");
switch(state)
{
case 0:
if(isdigit(ch))
{
push_char(ch);
if(ch == '0')
state = 1;
else
state = 4;
}
else
internal_error(__FILE__, __LINE__, "Non-digit in first number-scanner state\n");
break;
case 1:
if(ch == 'x' || ch == 'X')
{
push_char(ch);
state = 2;
}
else if(ch >= '0' && ch <= '7')
{
push_char(ch);
state = 3;
}
else if(isalpha(ch) || ch == '_')
xyyerror("Invalid number digit\n");
else
{
unget_unichar(ch);
mcy_lval.num = 0;
return tNUMBER;
}
break;
case 2:
if(isxdigit(ch))
push_char(ch);
else if(isalpha(ch) || ch == '_' || !isxdigit(tos_char_stack()))
xyyerror("Invalid hex digit\n");
else
{
base = 16;
goto finish;
}
break;
case 3:
if(ch >= '0' && ch <= '7')
push_char(ch);
else if(isalnum(ch) || ch == '_')
xyyerror("Invalid octal digit\n");
else
{
base = 8;
goto finish;
}
break;
case 4:
if(isdigit(ch))
push_char(ch);
else if(isalnum(ch) || ch == '_')
xyyerror("Invalid decimal digit\n");
else
{
base = 10;
goto finish;
}
break;
default:
internal_error(__FILE__, __LINE__, "Invalid state in number-scanner\n");
}
ch = get_unichar();
}
finish:
unget_unichar(ch);
push_char(0);
mcy_lval.num = strtoul(get_char_stack(), NULL, base);
return tNUMBER;
}
static void newline(void)
{
line_number++;
char_number = 1;
}
static int unisort(const void *p1, const void *p2)
{
return unistricmp(((const token_t *)p1)->name, ((const token_t *)p2)->name);
}
static token_t *tokentable = NULL;
static int ntokentable = 0;
token_t *lookup_token(const WCHAR *s)
{
token_t tok;
tok.name = s;
return (token_t *)bsearch(&tok, tokentable, ntokentable, sizeof(*tokentable), unisort);
}
void add_token(tok_e type, const WCHAR *name, int tok, int cp, const WCHAR *alias, int fix)
{
ntokentable++;
tokentable = xrealloc(tokentable, ntokentable * sizeof(*tokentable));
tokentable[ntokentable-1].type = type;
tokentable[ntokentable-1].name = name;
tokentable[ntokentable-1].token = tok;
tokentable[ntokentable-1].codepage = cp;
tokentable[ntokentable-1].alias = alias;
tokentable[ntokentable-1].fixed = fix;
qsort(tokentable, ntokentable, sizeof(*tokentable), unisort);
}
void get_tokentable(token_t **tab, int *len)
{
assert(tab != NULL);
assert(len != NULL);
*tab = tokentable;
*len = ntokentable;
}
/*
* The scanner
*
*/
int mcy_lex(void)
{
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static const WCHAR ustr_dot1[] = { '.', '\n', 0 };
static const WCHAR ustr_dot2[] = { '.', '\r', '\n', 0 };
static int isinit = 0;
int ch;
if(!isinit)
{
isinit++;
set_codepage(WMC_DEFAULT_CODEPAGE);
add_token(tok_keyword, ustr_codepages, tCODEPAGE, 0, NULL, 0);
add_token(tok_keyword, ustr_facility, tFACILITY, 0, NULL, 1);
add_token(tok_keyword, ustr_facilitynames, tFACNAMES, 0, NULL, 1);
add_token(tok_keyword, ustr_language, tLANGUAGE, 0, NULL, 1);
add_token(tok_keyword, ustr_languagenames, tLANNAMES, 0, NULL, 1);
add_token(tok_keyword, ustr_messageid, tMSGID, 0, NULL, 1);
add_token(tok_keyword, ustr_messageidtypedef, tTYPEDEF, 0, NULL, 1);
add_token(tok_keyword, ustr_outputbase, tBASE, 0, NULL, 1);
add_token(tok_keyword, ustr_severity, tSEVERITY, 0, NULL, 1);
add_token(tok_keyword, ustr_severitynames, tSEVNAMES, 0, NULL, 1);
add_token(tok_keyword, ustr_symbolicname, tSYMNAME, 0, NULL, 1);
add_token(tok_severity, ustr_error, 0x03, 0, NULL, 0);
add_token(tok_severity, ustr_warning, 0x02, 0, NULL, 0);
add_token(tok_severity, ustr_informational, 0x01, 0, NULL, 0);
add_token(tok_severity, ustr_success, 0x00, 0, NULL, 0);
add_token(tok_facility, ustr_application, 0xFFF, 0, NULL, 0);
add_token(tok_facility, ustr_system, 0x0FF, 0, NULL, 0);
add_token(tok_language, ustr_english, 0x409, 437, ustr_msg00001, 0);
}
empty_unichar_stack();
while(1)
{
if(want_line)
{
while((ch = get_unichar()) != '\n')
{
if(ch == EOF)
xyyerror("Unexpected EOF\n");
push_unichar(ch);
}
newline();
push_unichar(ch);
push_unichar(0);
if(!unistrcmp(ustr_dot1, get_unichar_stack()) || !unistrcmp(ustr_dot2, get_unichar_stack()))
{
want_line = 0;
/* Reset the codepage to our default after each message */
set_codepage(WMC_DEFAULT_CODEPAGE);
return tMSGEND;
}
mcy_lval.str = xunistrdup(get_unichar_stack());
return tLINE;
}
ch = get_unichar();
if(ch == EOF)
return EOF;
if(ch == '\n')
{
newline();
if(want_nl)
{
want_nl = 0;
return tNL;
}
continue;
}
if(isisochar(ch))
{
if(want_file)
{
int n = 0;
while(n < 8 && isisochar(ch))
{
int t = char_table[ch];
if((t & CH_PUNCT) || !(t & CH_SHORTNAME))
break;
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push_unichar(ch);
n++;
ch = get_unichar();
}
unget_unichar(ch);
push_unichar(0);
want_file = 0;
mcy_lval.str = xunistrdup(get_unichar_stack());
return tFILE;
}
if(char_table[ch] & CH_IDENT)
{
token_t *tok;
while(isisochar(ch) && (char_table[ch] & (CH_IDENT|CH_NUMBER)))
{
push_unichar(ch);
ch = get_unichar();
}
unget_unichar(ch);
push_unichar(0);
if(!(tok = lookup_token(get_unichar_stack())))
{
mcy_lval.str = xunistrdup(get_unichar_stack());
return tIDENT;
}
switch(tok->type)
{
case tok_keyword:
return tok->token;
case tok_language:
codepage = tok->codepage;
/* Fall through */
case tok_severity:
case tok_facility:
mcy_lval.tok = tok;
return tTOKEN;
default:
internal_error(__FILE__, __LINE__, "Invalid token type encountered\n");
}
}
if(isspace(ch)) /* Ignore space */
continue;
2002-06-01 01:06:46 +02:00
if(isdigit(ch))
return scan_number(ch);
}
switch(ch)
{
case ':':
case '=':
case '+':
case '(':
case ')':
return ch;
case ';':
while(ch != '\n' && ch != EOF)
{
push_unichar(ch);
ch = get_unichar();
}
newline();
push_unichar(ch); /* Include the newline */
push_unichar(0);
mcy_lval.str = xunistrdup(get_unichar_stack());
return tCOMMENT;
default:
xyyerror("Invalid character '%c' (0x%04x)\n", isisochar(ch) && isprint(ch) ? ch : '.', ch);
}
}
}