mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-12-26 14:55:36 +03:00
1131 lines
24 KiB
C++
1131 lines
24 KiB
C++
/**
|
|
* vim: set ts=4 :
|
|
* =============================================================================
|
|
* SourceMod
|
|
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
|
|
* =============================================================================
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it under
|
|
* the terms of the GNU General Public License, version 3.0, as published by the
|
|
* Free Software Foundation.
|
|
*
|
|
* This program 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 General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* As a special exception, AlliedModders LLC gives you permission to link the
|
|
* code of this program (as well as its derivative works) to "Half-Life 2," the
|
|
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
|
|
* by the Valve Corporation. You must obey the GNU General Public License in
|
|
* all respects for all other code used. Additionally, AlliedModders LLC grants
|
|
* this exception to all derivative works. AlliedModders LLC defines further
|
|
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
|
|
* or <http://www.sourcemod.net/license.php>.
|
|
*
|
|
* Version: $Id$
|
|
*/
|
|
#include "amxmodx.h"
|
|
#include "CTextParsers.h"
|
|
/*
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <assert.h>
|
|
#include <ILibrarySys.h>*/
|
|
|
|
#include <wctype.h>
|
|
|
|
TextParsers g_TextParser;
|
|
ITextParsers *textparsers = &g_TextParser;
|
|
|
|
static int g_ini_chartable1[255] = { 0 };
|
|
static int g_ws_chartable[255] = { 0 };
|
|
|
|
bool TextParsers::IsWhitespace(const char *stream)
|
|
{
|
|
return g_ws_chartable[(unsigned char)*stream] == 1;
|
|
}
|
|
|
|
TextParsers::TextParsers()
|
|
{
|
|
g_ini_chartable1[(unsigned)'_'] = 1;
|
|
g_ini_chartable1[(unsigned)'-'] = 1;
|
|
g_ini_chartable1[(unsigned)','] = 1;
|
|
g_ini_chartable1[(unsigned)'+'] = 1;
|
|
g_ini_chartable1[(unsigned)'.'] = 1;
|
|
g_ini_chartable1[(unsigned)'$'] = 1;
|
|
g_ini_chartable1[(unsigned)'?'] = 1;
|
|
g_ini_chartable1[(unsigned)'/'] = 1;
|
|
g_ws_chartable[(unsigned)'\n'] = 1;
|
|
g_ws_chartable[(unsigned)'\v'] = 1;
|
|
g_ws_chartable[(unsigned)'\r'] = 1;
|
|
g_ws_chartable[(unsigned)'\t'] = 1;
|
|
g_ws_chartable[(unsigned)'\f'] = 1;
|
|
g_ws_chartable[(unsigned)' '] = 1;
|
|
}
|
|
|
|
/*
|
|
void TextParsers::OnSourceModAllInitialized()
|
|
{
|
|
sharesys->AddInterface(NULL, this);
|
|
}*/
|
|
|
|
unsigned int TextParsers::GetUTF8CharBytes(const char *stream)
|
|
{
|
|
return _GetUTF8CharBytes(stream);
|
|
}
|
|
|
|
/**
|
|
* File streams
|
|
*/
|
|
|
|
bool FileStreamReader(void *stream, char *buffer, size_t maxlength, unsigned int *read)
|
|
{
|
|
size_t num = fread(buffer, 1, maxlength, (FILE *)stream);
|
|
|
|
*read = static_cast<unsigned int>(num);
|
|
|
|
if (num == 0 && feof((FILE *)stream))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return (ferror((FILE *)stream) == 0);
|
|
}
|
|
|
|
SMCError TextParsers::ParseFile_SMC(const char *file, ITextListener_SMC *smc, SMCStates *states)
|
|
{
|
|
FILE *fp = fopen(file, "rt");
|
|
|
|
if (!fp)
|
|
{
|
|
if (states != NULL)
|
|
{
|
|
states->line = 0;
|
|
states->col = 0;
|
|
}
|
|
return SMCError_StreamOpen;
|
|
}
|
|
|
|
SMCError result = ParseStream_SMC(fp, FileStreamReader, smc, states);
|
|
|
|
fclose(fp);
|
|
|
|
return result;
|
|
}
|
|
|
|
SMCError TextParsers::ParseSMCFile(const char *file,
|
|
ITextListener_SMC *smc_listener,
|
|
SMCStates *states,
|
|
char *buffer,
|
|
size_t maxsize)
|
|
{
|
|
const char *errstr;
|
|
FILE *fp = fopen(file, "rt");
|
|
|
|
if (fp == NULL)
|
|
{
|
|
char error[256] = "unknown";
|
|
if (states != NULL)
|
|
{
|
|
states->line = 0;
|
|
states->col = 0;
|
|
}
|
|
/*libsys->GetPlatformError(error, sizeof(error));*/
|
|
UTIL_Format(buffer, maxsize, "File could not be opened: %s", error);
|
|
return SMCError_StreamOpen;
|
|
}
|
|
|
|
SMCError result = ParseStream_SMC(fp, FileStreamReader, smc_listener, states);
|
|
|
|
fclose(fp);
|
|
|
|
errstr = GetSMCErrorString(result);
|
|
UTIL_Format(buffer, maxsize, "%s", errstr != NULL ? errstr : "Unknown error");
|
|
|
|
return result;
|
|
}
|
|
|
|
struct RawStream
|
|
{
|
|
const char *stream;
|
|
size_t length;
|
|
size_t pos;
|
|
};
|
|
|
|
bool RawStreamReader(void *stream, char *buffer, size_t maxlength, unsigned int *read)
|
|
{
|
|
RawStream *rs = (RawStream *)stream;
|
|
|
|
if (rs->pos >= rs->length)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
size_t remaining = rs->length - rs->pos;
|
|
|
|
/* Use the smaller of the two */
|
|
size_t copy = (remaining > maxlength) ? maxlength : remaining;
|
|
|
|
memcpy(buffer, &rs->stream[rs->pos], copy);
|
|
rs->pos += copy;
|
|
*read = copy;
|
|
assert(rs->pos <= rs->length);
|
|
|
|
return true;
|
|
}
|
|
|
|
SMCError TextParsers::ParseSMCStream(const char *stream,
|
|
size_t length,
|
|
ITextListener_SMC *smc_listener,
|
|
SMCStates *states,
|
|
char *buffer,
|
|
size_t maxsize)
|
|
{
|
|
RawStream rs;
|
|
SMCError result;
|
|
|
|
rs.stream = stream;
|
|
rs.length = length;
|
|
rs.pos = 0;
|
|
|
|
result = ParseStream_SMC(&rs, RawStreamReader, smc_listener, states);
|
|
|
|
const char *errstr = GetSMCErrorString(result);
|
|
UTIL_Format(buffer, maxsize, "%s", errstr != NULL ? errstr : "Unknown error");
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Raw parsing of streams with helper functions
|
|
*/
|
|
|
|
struct StringInfo
|
|
{
|
|
StringInfo() : quoted(false), ptr(NULL), end(NULL), special(false) { }
|
|
bool quoted;
|
|
char *ptr;
|
|
char *end;
|
|
bool special;
|
|
};
|
|
|
|
const char *FixupString(StringInfo &data)
|
|
{
|
|
if (!data.ptr)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if (data.quoted)
|
|
{
|
|
data.ptr++;
|
|
}
|
|
#if defined _DEBUG
|
|
else {
|
|
/* A string will never have beginning whitespace because we ignore it in the stream.
|
|
* Furthermore, if there is trailing whitespace, the end ptr will point to it, so it is valid
|
|
* to overwrite! Lastly, the last character must be whitespace or a comment/invalid character.
|
|
*/
|
|
}
|
|
#endif
|
|
|
|
/* Do some extra work on strings that have special quoted characters. */
|
|
if (data.special)
|
|
{
|
|
char *outptr = data.ptr;
|
|
size_t len = data.end - data.ptr;
|
|
if (len >= 2)
|
|
{
|
|
for (size_t i = 0; i<len; i++)
|
|
{
|
|
if (data.ptr[i] == '\\' && i < len - 1)
|
|
{
|
|
/* Resolve the next character. */
|
|
i++;
|
|
if (data.ptr[i] == 'n')
|
|
{
|
|
data.ptr[i] = '\n';
|
|
}
|
|
else if (data.ptr[i] == 't') {
|
|
data.ptr[i] = '\t';
|
|
}
|
|
else if (data.ptr[i] == 'r') {
|
|
data.ptr[i] = '\r';
|
|
}
|
|
else if (data.ptr[i] != '\\'
|
|
&& data.ptr[i] != '"') {
|
|
/* This character is invalid, so go back one */
|
|
i--;
|
|
}
|
|
}
|
|
*outptr++ = data.ptr[i];
|
|
}
|
|
*outptr = '\0';
|
|
}
|
|
}
|
|
|
|
if (data.end)
|
|
{
|
|
*(data.end) = '\0';
|
|
}
|
|
|
|
return data.ptr;
|
|
}
|
|
|
|
const char *rotate(StringInfo info[3])
|
|
{
|
|
if (info[2].ptr != NULL)
|
|
{
|
|
return info[2].ptr;
|
|
}
|
|
|
|
if (info[0].ptr != NULL)
|
|
{
|
|
info[2] = info[1];
|
|
info[1] = info[0];
|
|
info[0] = StringInfo();
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void scrap(StringInfo info[3])
|
|
{
|
|
info[2] = StringInfo();
|
|
info[1] = StringInfo();
|
|
info[0] = StringInfo();
|
|
}
|
|
|
|
void reloc(StringInfo &data, unsigned int bytes)
|
|
{
|
|
if (data.ptr)
|
|
{
|
|
data.ptr -= bytes;
|
|
}
|
|
if (data.end)
|
|
{
|
|
data.end -= bytes;
|
|
}
|
|
}
|
|
|
|
char *lowstring(StringInfo info[3])
|
|
{
|
|
for (int i = 2; i >= 0; i--)
|
|
{
|
|
if (info[i].ptr)
|
|
{
|
|
return info[i].ptr;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
SMCError TextParsers::ParseStream_SMC(void *stream,
|
|
STREAMREADER srdr,
|
|
ITextListener_SMC *smc,
|
|
SMCStates *pStates)
|
|
{
|
|
char *reparse_point = NULL;
|
|
char in_buf[4096];
|
|
char *parse_point = in_buf;
|
|
char *line_begin = in_buf;
|
|
unsigned int read;
|
|
unsigned int curlevel = 0;
|
|
bool in_quote = false;
|
|
bool ignoring = false;
|
|
bool eol_comment = false;
|
|
bool ml_comment = false;
|
|
unsigned int i;
|
|
SMCError err = SMCError_Okay;
|
|
SMCResult res;
|
|
SMCStates states;
|
|
char c;
|
|
|
|
StringInfo strings[3];
|
|
StringInfo emptystring;
|
|
|
|
states.line = 1;
|
|
states.col = 0;
|
|
|
|
smc->ReadSMC_ParseStart();
|
|
|
|
/**
|
|
* The stream reader reads in as much as it can fill the buffer with.
|
|
* It then processes the buffer. If the buffer cannot be fully processed, for example,
|
|
* a line is left hanging with no newline, then the contents of the buffer is shifted
|
|
* down, and the buffer is filled from the stream reader again.
|
|
*
|
|
* What makes this particularly annoying is that we cache pointers everywhere, so when
|
|
* the shifting process takes place, all those pointers must be shifted as well.
|
|
*/
|
|
while (srdr(stream, parse_point, sizeof(in_buf)-(parse_point - in_buf) - 1, &read))
|
|
{
|
|
if (!read)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Check for BOM markings, which is only relevant on the first line.
|
|
* Not worth it, but it could be moved out of the loop.
|
|
*/
|
|
if (states.line == 1 &&
|
|
in_buf[0] == (char)0xEF &&
|
|
in_buf[1] == (char)0xBB &&
|
|
in_buf[2] == (char)0xBF)
|
|
{
|
|
/* Move EVERYTHING down :\ */
|
|
memmove(in_buf, &in_buf[3], read - 3);
|
|
read -= 3;
|
|
}
|
|
|
|
if (reparse_point)
|
|
{
|
|
read += (parse_point - reparse_point);
|
|
parse_point = reparse_point;
|
|
reparse_point = NULL;
|
|
}
|
|
|
|
for (i = 0; i<read; i++)
|
|
{
|
|
c = parse_point[i];
|
|
if (c == '\n')
|
|
{
|
|
/* If we got a newline, there's a lot of things that could have happened in the interim.
|
|
* First, let's make sure the staged strings are rotated.
|
|
*/
|
|
if (strings[0].ptr)
|
|
{
|
|
strings[0].end = &parse_point[i];
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
/* Next, let's clear some line-based values that may no longer have meaning */
|
|
eol_comment = false;
|
|
in_quote = false;
|
|
if (ignoring && !ml_comment)
|
|
{
|
|
ignoring = false;
|
|
}
|
|
|
|
/* Pass the raw line onto the listener. We terminate the line so the receiver
|
|
* doesn't get tons of useless info. We restore the newline after.
|
|
*/
|
|
parse_point[i] = '\0';
|
|
if ((res = smc->ReadSMC_RawLine(&states, line_begin)) != SMCResult_Continue)
|
|
{
|
|
err = (res == SMCResult_HaltFail) ? SMCError_Custom : SMCError_Okay;
|
|
goto failed;
|
|
}
|
|
parse_point[i] = '\n';
|
|
|
|
/* Now we check the sanity of our staged strings! */
|
|
if (strings[2].ptr)
|
|
{
|
|
if (!curlevel)
|
|
{
|
|
err = SMCError_InvalidProperty1;
|
|
goto failed;
|
|
}
|
|
/* Assume the next string is a property and pass the info on. */
|
|
if ((res = smc->ReadSMC_KeyValue(
|
|
&states,
|
|
FixupString(strings[2]),
|
|
FixupString(strings[1]))) != SMCResult_Continue)
|
|
{
|
|
err = (res == SMCResult_HaltFail) ? SMCError_Custom : SMCError_Okay;
|
|
goto failed;
|
|
}
|
|
scrap(strings);
|
|
}
|
|
|
|
/* Change the states for the next line */
|
|
states.col = 0;
|
|
states.line++;
|
|
line_begin = &parse_point[i + 1]; //Note: safe because this gets relocated later
|
|
}
|
|
else if (ignoring)
|
|
{
|
|
if (in_quote)
|
|
{
|
|
/* If i was 0, we could have reparsed, so make sure there's no buffer underrun */
|
|
if ((&parse_point[i] != in_buf) && c == '"' && parse_point[i - 1] != '\\')
|
|
{
|
|
/* If we reached a quote in an ignore phase,
|
|
* we're staging a string and we must rotate it out.
|
|
*/
|
|
in_quote = false;
|
|
ignoring = false;
|
|
/* Set our info */
|
|
strings[0].end = &parse_point[i];
|
|
strings[0].quoted = true;
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
/* If we rotated too many strings, there was too much crap on one line */
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
}
|
|
else if (c == '\\')
|
|
{
|
|
strings[0].special = true;
|
|
if (i == (read - 1))
|
|
{
|
|
reparse_point = &parse_point[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else if (ml_comment)
|
|
{
|
|
if (c == '*')
|
|
{
|
|
/* Check if we need to get more input first */
|
|
if (i == read - 1)
|
|
{
|
|
reparse_point = &parse_point[i];
|
|
break;
|
|
}
|
|
if (parse_point[i + 1] == '/')
|
|
{
|
|
ml_comment = false;
|
|
ignoring = false;
|
|
/* We should not be staging anything right now. */
|
|
assert(strings[0].ptr == NULL);
|
|
/* Advance the input stream so we don't choke on this token */
|
|
i++;
|
|
states.col++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Check if we're whitespace or not */
|
|
if (!g_ws_chartable[(unsigned char)c])
|
|
{
|
|
bool restage = false;
|
|
/* Check various special tokens:
|
|
* ;
|
|
* //
|
|
* / *
|
|
* {
|
|
* }
|
|
*/
|
|
if (c == ';' || c == '/')
|
|
{
|
|
/* If it's a line-based comment (that is, ; or //)
|
|
* we will need to scrap everything until the end of the line.
|
|
*/
|
|
if (c == '/')
|
|
{
|
|
if (i == read - 1)
|
|
{
|
|
/* If we reached the end of the look-ahead, we need to re-check our input.
|
|
* Breaking out will force this to be the new reparse point!
|
|
*/
|
|
reparse_point = &parse_point[i];
|
|
break;
|
|
}
|
|
if (parse_point[i + 1] == '/')
|
|
{
|
|
/* standard comment */
|
|
ignoring = true;
|
|
eol_comment = true;
|
|
restage = true;
|
|
}
|
|
else if (parse_point[i + 1] == '*')
|
|
{
|
|
/* inline comment - start ignoring */
|
|
ignoring = true;
|
|
ml_comment = true;
|
|
/* yes, we restage, meaning that:
|
|
* STR/ *stuff* /ING (space because ml comments don't nest in C++)
|
|
* will not generate 'STRING', but rather 'STR' and 'ING'.
|
|
* This should be a rare occurrence and is done here for convenience.
|
|
*/
|
|
restage = true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ignoring = true;
|
|
eol_comment = true;
|
|
restage = true;
|
|
}
|
|
}
|
|
else if (c == '{')
|
|
{
|
|
/* If we are staging a string, we must rotate here */
|
|
if (strings[0].ptr)
|
|
{
|
|
/* We have unacceptable tokens on this line */
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
err = SMCError_InvalidSection1;
|
|
goto failed;
|
|
}
|
|
}
|
|
/* Sections must always be alone */
|
|
if (strings[2].ptr != NULL)
|
|
{
|
|
err = SMCError_InvalidSection1;
|
|
goto failed;
|
|
}
|
|
else if (strings[1].ptr == NULL)
|
|
{
|
|
err = SMCError_InvalidSection2;
|
|
goto failed;
|
|
}
|
|
if ((res = smc->ReadSMC_NewSection(&states, FixupString(strings[1])))
|
|
!= SMCResult_Continue)
|
|
{
|
|
err = (res == SMCResult_HaltFail) ? SMCError_Custom : SMCError_Okay;
|
|
goto failed;
|
|
}
|
|
strings[1] = emptystring;
|
|
curlevel++;
|
|
}
|
|
else if (c == '}')
|
|
{
|
|
/* Unlike our matching friend, this can be on the same line as something prior */
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
err = SMCError_InvalidSection3;
|
|
goto failed;
|
|
}
|
|
if (strings[2].ptr)
|
|
{
|
|
if (!curlevel)
|
|
{
|
|
err = SMCError_InvalidProperty1;
|
|
goto failed;
|
|
}
|
|
if ((res = smc->ReadSMC_KeyValue(
|
|
&states,
|
|
FixupString(strings[2]),
|
|
FixupString(strings[1])))
|
|
!= SMCResult_Continue)
|
|
{
|
|
err = (res == SMCResult_HaltFail) ? SMCError_Custom : SMCError_Okay;
|
|
goto failed;
|
|
}
|
|
}
|
|
else if (strings[1].ptr)
|
|
{
|
|
err = SMCError_InvalidSection3;
|
|
goto failed;
|
|
}
|
|
else if (!curlevel)
|
|
{
|
|
err = SMCError_InvalidSection4;
|
|
goto failed;
|
|
}
|
|
/* Now it's safe to leave the section */
|
|
scrap(strings);
|
|
if ((res = smc->ReadSMC_LeavingSection(&states)) != SMCResult_Continue)
|
|
{
|
|
err = (res == SMCResult_HaltFail) ? SMCError_Custom : SMCError_Okay;
|
|
goto failed;
|
|
}
|
|
curlevel--;
|
|
}
|
|
else if (c == '"')
|
|
{
|
|
/* If we get a quote mark, we always restage, but we need to do it beforehand */
|
|
if (strings[0].ptr)
|
|
{
|
|
strings[0].end = &parse_point[i];
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
}
|
|
strings[0].ptr = &parse_point[i];
|
|
in_quote = true;
|
|
ignoring = true;
|
|
}
|
|
else if (!strings[0].ptr)
|
|
{
|
|
/* If we have no string, we must start one */
|
|
strings[0].ptr = &parse_point[i];
|
|
}
|
|
if (restage && strings[0].ptr)
|
|
{
|
|
strings[0].end = &parse_point[i];
|
|
if (rotate(strings) != NULL)
|
|
{
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* If we're eating a string and get whitespace, we need to restage.
|
|
* (Note that if we are quoted, this is being ignored)
|
|
*/
|
|
if (strings[0].ptr)
|
|
{
|
|
/*
|
|
* The specification says the second string in a pair does not need to be quoted.
|
|
* Thus, we check if there's already a string on the stack.
|
|
* If there's a newline, we always rotate so the newline has an empty starter.
|
|
*/
|
|
if (!strings[1].ptr)
|
|
{
|
|
/* There's no string, so we must move this one down and eat up another */
|
|
strings[0].end = &parse_point[i];
|
|
rotate(strings);
|
|
}
|
|
else if (!strings[1].quoted)
|
|
{
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Advance which token we're on */
|
|
states.col++;
|
|
}
|
|
|
|
if (line_begin != in_buf)
|
|
{
|
|
/* The line buffer has advanced, so it's safe to copy N bytes back to the beginning.
|
|
* What's N? N is the lowest point we're currently relying on.
|
|
*/
|
|
char *stage = lowstring(strings);
|
|
if (!stage || stage > line_begin)
|
|
{
|
|
stage = line_begin;
|
|
}
|
|
unsigned int bytes = read - (stage - parse_point);
|
|
|
|
/* It is now safe to delete everything before the staged point */
|
|
memmove(in_buf, stage, bytes);
|
|
|
|
/* Calculate the number of bytes in the new buffer */
|
|
bytes = stage - in_buf;
|
|
/* Relocate all the cached pointers to our new base */
|
|
line_begin -= bytes;
|
|
reloc(strings[0], bytes);
|
|
reloc(strings[1], bytes);
|
|
reloc(strings[2], bytes);
|
|
if (reparse_point)
|
|
{
|
|
reparse_point -= bytes;
|
|
}
|
|
if (parse_point)
|
|
{
|
|
parse_point = &parse_point[read];
|
|
parse_point -= bytes;
|
|
}
|
|
}
|
|
else if (read == sizeof(in_buf)-1)
|
|
{
|
|
err = SMCError_TokenOverflow;
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
/* If we're done parsing and there are tokens left over... */
|
|
if (curlevel)
|
|
{
|
|
err = SMCError_InvalidSection5;
|
|
goto failed;
|
|
}
|
|
else if (strings[0].ptr || strings[1].ptr)
|
|
{
|
|
err = SMCError_InvalidTokens;
|
|
goto failed;
|
|
}
|
|
|
|
smc->ReadSMC_ParseEnd(false, false);
|
|
|
|
if (pStates != NULL)
|
|
{
|
|
*pStates = states;
|
|
}
|
|
|
|
return SMCError_Okay;
|
|
|
|
failed:
|
|
if (pStates != NULL)
|
|
{
|
|
*pStates = states;
|
|
}
|
|
|
|
smc->ReadSMC_ParseEnd(true, (err == SMCError_Custom));
|
|
|
|
return err;
|
|
}
|
|
|
|
|
|
/**
|
|
* INI parser
|
|
*/
|
|
|
|
bool TextParsers::ParseFile_INI(const char *file, ITextListener_INI *ini_listener, unsigned int *line, unsigned int *col)
|
|
{
|
|
FILE *fp = fopen(file, "rt");
|
|
unsigned int curline = 0;
|
|
unsigned int curtok;
|
|
size_t len;
|
|
|
|
if (!fp)
|
|
{
|
|
if (line)
|
|
{
|
|
*line = 0;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
ini_listener->ReadINI_ParseStart();
|
|
|
|
char buffer[2048];
|
|
char *ptr, *save_ptr;
|
|
bool in_quote;
|
|
|
|
while (!feof(fp))
|
|
{
|
|
curline++;
|
|
curtok = 0;
|
|
buffer[0] = '\0';
|
|
if (fgets(buffer, sizeof(buffer), fp) == NULL)
|
|
{
|
|
break;
|
|
}
|
|
|
|
//:TODO: this will only run once, so find a nice way to move it out of the while loop
|
|
/* If this is the first line, check the first three bytes for BOM */
|
|
if (curline == 1 &&
|
|
buffer[0] == (char)0xEF &&
|
|
buffer[1] == (char)0xBB &&
|
|
buffer[2] == (char)0xBF)
|
|
{
|
|
/* We have a UTF-8 marked file... skip these bytes */
|
|
ptr = &buffer[3];
|
|
}
|
|
else {
|
|
ptr = buffer;
|
|
}
|
|
|
|
/***************************************************
|
|
* We preprocess the string before parsing tokens! *
|
|
***************************************************/
|
|
|
|
/* First strip beginning whitespace */
|
|
while (*ptr != '\0' && g_ws_chartable[(unsigned char)*ptr] != 0)
|
|
{
|
|
ptr++;
|
|
}
|
|
|
|
len = strlen(ptr);
|
|
|
|
if (!len)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
/* Now search for comment characters */
|
|
in_quote = false;
|
|
save_ptr = ptr;
|
|
for (size_t i = 0; i<len; i++, ptr++)
|
|
{
|
|
if (!in_quote)
|
|
{
|
|
switch (*ptr)
|
|
{
|
|
case '"':
|
|
{
|
|
in_quote = true;
|
|
break;
|
|
}
|
|
case ';':
|
|
{
|
|
/* Stop the loop */
|
|
len = i;
|
|
|
|
/* Terminate the string here */
|
|
*ptr = '\0';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (*ptr == '"')
|
|
{
|
|
in_quote = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!len)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
ptr = save_ptr;
|
|
|
|
/* Lastly, strip ending whitespace off */
|
|
for (size_t i = len - 1; i<len; i--)
|
|
{
|
|
if (g_ws_chartable[(unsigned char)ptr[i]])
|
|
{
|
|
ptr[i] = '\0';
|
|
len--;
|
|
}
|
|
else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!len)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if (!ini_listener->ReadINI_RawLine(ptr, &curtok))
|
|
{
|
|
goto event_failed;
|
|
}
|
|
|
|
if (*ptr == '[')
|
|
{
|
|
bool invalid_tokens = false;
|
|
bool got_bracket = false;
|
|
bool extra_tokens = false;
|
|
char c;
|
|
bool alnum;
|
|
wchar_t wc;
|
|
|
|
for (size_t i = 1; i<len; i++)
|
|
{
|
|
c = ptr[i];
|
|
alnum = false;
|
|
|
|
if (c & (1 << 7))
|
|
{
|
|
if (mbtowc(&wc, &ptr[i], len - i) != -1)
|
|
{
|
|
alnum = (iswalnum(wc) != 0);
|
|
i += _GetUTF8CharBytes(&ptr[i]) - 1;
|
|
}
|
|
}
|
|
else {
|
|
alnum = (isalnum(c) != 0) || (g_ini_chartable1[(unsigned char)c] != 0);
|
|
}
|
|
if (!alnum)
|
|
{
|
|
/* First check - is this a bracket? */
|
|
if (c == ']')
|
|
{
|
|
/* Yes! */
|
|
got_bracket = true;
|
|
/* If this isn't the last character... */
|
|
if (i != len - 1)
|
|
{
|
|
extra_tokens = true;
|
|
}
|
|
/* terminate */
|
|
ptr[i] = '\0';
|
|
break;
|
|
}
|
|
else {
|
|
/* n...No! Continue copying. */
|
|
invalid_tokens = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Tell the handler */
|
|
if (!ini_listener->ReadINI_NewSection(&ptr[1], invalid_tokens, got_bracket, extra_tokens, &curtok))
|
|
{
|
|
goto event_failed;
|
|
}
|
|
}
|
|
else {
|
|
char *key_ptr = ptr;
|
|
char *val_ptr = NULL;
|
|
char c;
|
|
size_t first_space = 0;
|
|
bool invalid_tokens = false;
|
|
bool equal_token = false;
|
|
bool quotes = false;
|
|
bool alnum;
|
|
wchar_t wc;
|
|
|
|
for (size_t i = 0; i<len; i++)
|
|
{
|
|
c = ptr[i];
|
|
alnum = false;
|
|
/* is this an invalid char? */
|
|
if (c & (1 << 7))
|
|
{
|
|
if (mbtowc(&wc, &ptr[i], len - i) != -1)
|
|
{
|
|
alnum = (iswalnum(wc) != 0);
|
|
i += _GetUTF8CharBytes(&ptr[i]) - 1;
|
|
}
|
|
}
|
|
else {
|
|
alnum = (isalnum(c) != 0) || (g_ini_chartable1[(unsigned char)c] != 0);
|
|
}
|
|
|
|
if (!alnum)
|
|
{
|
|
if (g_ws_chartable[(unsigned char)c])
|
|
{
|
|
/* if it's a space, keep track of the first occurring space */
|
|
if (!first_space)
|
|
{
|
|
first_space = i;
|
|
}
|
|
}
|
|
else {
|
|
if (c == '=')
|
|
{
|
|
/* if it's an equal sign, we're done with the key */
|
|
if (first_space)
|
|
{
|
|
/* remove excess whitespace */
|
|
key_ptr[first_space] = '\0';
|
|
}
|
|
else {
|
|
/* remove the equal sign */
|
|
key_ptr[i] = '\0';
|
|
}
|
|
if (ptr[++i] != '\0')
|
|
{
|
|
/* If this isn't the end, set next pointer */
|
|
val_ptr = &ptr[i];
|
|
}
|
|
equal_token = true;
|
|
break;
|
|
}
|
|
else {
|
|
/* Mark that we got something invalid! */
|
|
invalid_tokens = true;
|
|
first_space = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Now we need to parse the value, if any */
|
|
if (val_ptr)
|
|
{
|
|
/* eat up spaces! there shouldn't be any h*/
|
|
while ((*val_ptr != '\0') && g_ws_chartable[(unsigned char)*val_ptr] != 0)
|
|
{
|
|
val_ptr++;
|
|
}
|
|
if (*val_ptr == '\0')
|
|
{
|
|
val_ptr = NULL;
|
|
goto skip_value;
|
|
}
|
|
/* Do we have an initial quote? If so, the parsing rules change! */
|
|
if (*val_ptr == '"' && *val_ptr != '\0')
|
|
{
|
|
len = strlen(val_ptr);
|
|
if (val_ptr[len - 1] == '"')
|
|
{
|
|
/* Strip quotes! */
|
|
val_ptr[--len] = '\0';
|
|
val_ptr++;
|
|
quotes = true;
|
|
}
|
|
}
|
|
}
|
|
skip_value:
|
|
/* We're done! */
|
|
if (val_ptr)
|
|
curtok = val_ptr - buffer;
|
|
else
|
|
curtok = 0;
|
|
|
|
if (!ini_listener->ReadINI_KeyValue(key_ptr, val_ptr, invalid_tokens, equal_token, quotes, &curtok))
|
|
{
|
|
curtok = 0;
|
|
goto event_failed;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (line)
|
|
{
|
|
*line = curline;
|
|
}
|
|
|
|
if (col)
|
|
{
|
|
*col = curtok;
|
|
}
|
|
|
|
fclose(fp);
|
|
|
|
ini_listener->ReadINI_ParseEnd(false);
|
|
|
|
return true;
|
|
|
|
event_failed:
|
|
if (line)
|
|
{
|
|
*line = curline;
|
|
}
|
|
|
|
if (col)
|
|
{
|
|
*col = curtok;
|
|
}
|
|
|
|
fclose(fp);
|
|
|
|
ini_listener->ReadINI_ParseEnd(true);
|
|
|
|
return false;
|
|
}
|
|
|
|
const char *TextParsers::GetSMCErrorString(SMCError err)
|
|
{
|
|
static const char *s_errors[] =
|
|
{
|
|
NULL,
|
|
"Stream failed to open",
|
|
"Stream returned read error",
|
|
NULL,
|
|
"Un-quoted section has invalid tokens",
|
|
"Section declared without header",
|
|
"Section declared with unknown tokens",
|
|
"Section ending without a matching section beginning",
|
|
"Section beginning without a matching ending",
|
|
"Line contained too many invalid tokens",
|
|
"Token buffer overflowed",
|
|
"A property was declared outside of a section",
|
|
};
|
|
|
|
if (err < SMCError_Okay || err > SMCError_InvalidProperty1)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
return s_errors[err];
|
|
}
|