StringBuffer &appendEscapedEclString(StringBuffer &s, const char *content)
{
if (!content || !*content)
return s;
content=skipBOM(content);
for (;*content;content++)
{
switch (*content)
{
case '\'':
s.append("\\'");
break;
case '\t':
s.append("\\t");
break;
case '\n':
s.append("\\n");
break;
case '\r':
s.append("\\r");
break;
case '\\':
s.append("\\\\");
break;
default:
s.append(*content);
break;
}
}
return s;
}
/*
** reads the first character of file 'f' and skips an optional BOM mark
** in its beginning plus its first line if it starts with '#'. Returns
** true if it skipped the first line. In any case, '*cp' has the
** first "valid" character of the file (after the optional BOM and
** a first-line comment).
*/
static int skipcomment (LoadF *lf, int *cp) {
int c = *cp = skipBOM(lf);
if (c == '#') { /* first line is a comment (Unix exec. file)? */
while ((c = getc(lf->f)) != EOF && c != '\n') ; /* skip first line */
*cp = getc(lf->f); /* skip end-of-line */
return 1; /* there was a comment */
}
else return 0; /* no comment */
}
void preParse(char **body, char **header, char **label)
/**************************************************************************
purpose: obtain the next section of the latex file
This is now a preparsing routine that breaks a file up into sections.
Macro expansion happens here as well. \input and \include are also
handled here. The reason for this routine is allow \labels to refer
to sections.
This routine reads text until a new section heading is found. The text
is returned in body and the *next* header is returned in header. If
no header follows then NULL is returned.
**************************************************************************/
{
int any_possible_match, found;
char cNext, cThis, *s, *text, *next_header, *str, *p;
int i;
int possible_match[43];
char *command[43] = { "", /* 0 entry is for user definitions */
"", /* 1 entry is for user environments */
"\\begin{verbatim}",
"\\begin{figure}", "\\begin{figure*}",
"\\begin{equation}", "\\begin{equation*}",
"\\begin{eqnarray}", "\\begin{eqnarray*}",
"\\begin{table}", "\\begin{table*}",
"\\begin{description}", "\\begin{comment}",
"\\end{verbatim}",
"\\end{figure}", "\\end{figure*}",
"\\end{equation}", "\\end{equation*}",
"\\end{eqnarray}", "\\end{eqnarray*}",
"\\end{table}", "\\end{table*}",
"\\end{description}", "\\end{comment}",
"\\part", "\\chapter", "\\section", "\\subsection", "\\subsubsection",
"\\section*", "\\subsection*", "\\subsubsection*",
"\\label", "\\input", "\\include", "\\verb", "\\url", "\\nolinkurl",
"\\newcommand", "\\def", "\\renewcommand", "\\endinput", "\\end{document}",
};
int ncommands = 43;
const int b_verbatim_item = 2;
const int b_figure_item = 3;
const int b_figure_item2 = 4;
const int b_equation_item = 5;
const int b_equation_item2 = 6;
const int b_eqnarray_item = 7;
const int b_eqnarray_item2 = 8;
const int b_table_item = 9;
const int b_table_item2 = 10;
const int b_description_item = 11;
const int b_comment_item = 12;
const int e_verbatim_item = 13;
const int e_figure_item = 14;
const int e_figure_item2 = 15;
const int e_equation_item = 16;
const int e_equation_item2 = 17;
const int e_eqnarray_item = 18;
const int e_eqnarray_item2 = 19;
const int e_table_item = 20;
const int e_table_item2 = 21;
const int e_description_item = 22;
const int e_comment_item = 23;
const int label_item = 32;
const int input_item = 33;
const int include_item = 34;
const int verb_item = 35;
const int url_item = 36;
const int nolinkurl_item = 37;
const int new_item = 38;
const int def_item = 39;
const int renew_item = 40;
const int endinput_item = 41;
const int e_document_item = 42;
int bs_count = 0; /* number of backslashes encountered in a row */
size_t cmd_pos = 0; /* position of start of command relative to end of buffer */
int label_depth = 0;
int i_match = 0;
text = NULL;
next_header = NULL; /* typically becomes \subsection{Cows eat grass} */
*body = NULL;
*header = NULL;
*label = NULL;
PushTrackLineNumber(FALSE);
reset_buffer();
while (1) {
cThis = getRawTexChar();
while (cThis == '\0' && getParserDepth() > 0) {
PopSource();
diagnostics(4,"parser depth is now %d", getParserDepth());
cThis = getRawTexChar();
}
if (cThis == '\0')
diagnostics(6, "[%ld] xchar=000 '\\0' (backslash count=%d)", section_buffer_end, bs_count);
else if (cThis == '\n')
diagnostics(6, "[%ld] xchar=012 '\\n' (backslash count=%d)", section_buffer_end, bs_count);
else
diagnostics(6, "[%ld] xchar=%03d '%c' (backslash count=%d)", section_buffer_end, (int) cThis, cThis, bs_count);
cThis = skipBOM(cThis);
add_chr_to_buffer(cThis);
if (cThis == '\0') break;
if (cThis == '%' && even(bs_count)) {
int n = 1; /* remove initial % */
do {
cNext = getRawTexChar();
add_chr_to_buffer(cNext);
n++;
} while (cNext != '\n' && cNext != '\0');
move_end_of_buffer(-n);
if (0) show_buffer("percent");
continue;
}
/* cmd_pos > 0 means that we have encountered a '\' and some
fraction of a command, e.g., '\sec', therefore the first
time that a backslash is found then cmd_pos becomes 1, */
if (cThis == '\\') {
bs_count++;
if (odd(bs_count)) { /* avoid "\\section" and "\\\\section" */
for (i = 0; i < ncommands; i++)
possible_match[i] = TRUE;
cmd_pos = 1;
continue;
}
} else
bs_count = 0;
if (cmd_pos == 0) continue;
/* replace "\ " and "\\n" with a space */
if (cmd_pos == 1 && (cThis == '\n' || cThis == ' ') ) {
move_end_of_buffer(-1);
add_chr_to_buffer(' ');
cmd_pos = 0;
continue;
}
/* at this point we are have encountered a command and may have to do something.
if it is a user definition, then the user definition is expanded here
if it is a user environment, then expansion also happens here
it it is something else then we may or may not have to mess with it. */
/* hack to convert '\begin {' --> '\begin{' */
if (cThis==' ' && (matches_buffer_tail("\\begin") || matches_buffer_tail("\\end")) ) {
diagnostics(5, "matched '\\begin ' or '\\end '");
do {cThis = getRawTexChar();} while (cThis == ' ');
}
/* hack to convert '\begin{ ' --> '\begin{' */
if (cThis==' ' && (matches_buffer_tail("\\begin{") || matches_buffer_tail("\\end{")) ) {
diagnostics(5, "matched '\\begin{ ' or '\\end{ '");
do {cThis = getRawTexChar();} while (cThis == ' ');
}
any_possible_match = FALSE;
found = FALSE;
/* is is possibly a user defined command? */
if (possible_match[0]) {
possible_match[0] = maybeDefinition(section_buffer + section_buffer_end - cmd_pos + 1, cmd_pos - 1);
if (possible_match[0]) { /* test to make sure \userdef is complete */
any_possible_match = TRUE;
cNext = getRawTexChar(); /* wrong when cNext == '%' */
ungetTexChar(cNext);
if (!isalpha((int) cNext)) { /* is macro name complete? */
*(section_buffer + section_buffer_end + 1) = '\0';
i = existsDefinition(section_buffer + section_buffer_end - cmd_pos + 1);
if (i > -1) {
diagnostics(4, "matched <%s> ", section_buffer + section_buffer_end - cmd_pos);
if (cNext == ' ') {
cNext = getNonSpace();
ungetTexChar(cNext);
}
move_end_of_buffer(-cmd_pos-1); /* remove \userdef */
str = expandDefinition(i);
PushSource(NULL, str);
free(str);
cmd_pos = 0;
bs_count = 0;
continue;
}
}
}
}
/* is it a user defined environment? */
if (possible_match[1]) {
char *pp = section_buffer + section_buffer_end - cmd_pos;
possible_match[1] = maybeEnvironment(pp, cmd_pos);
if (possible_match[1] == TRUE) {
any_possible_match = TRUE;
cNext = getRawTexChar(); /* wrong when cNext == '%' */
/* \begin{name} or \end{name} will end with '}' */
if (cNext == '}') {
char *ss = NULL;
*(pp + cmd_pos + 1) = '\0';
if (*(pp + 1) == 'e') {
i = existsEnvironment(pp + strlen("\\end{"));
ss = expandEnvironment(i, CMD_END);
} else {
i = existsEnvironment(pp + strlen("\\begin{"));
ss = expandEnvironment(i, CMD_BEGIN);
}
if (ss) { /* found */
diagnostics(5, "matched <%s}>", pp);
diagnostics(5, "expanded to <%s>", ss);
PushSource(NULL, ss);
move_end_of_buffer(-cmd_pos-1); /* remove \begin{userenvironment} */
free(ss);
cmd_pos = 0;
continue;
}
}
ungetTexChar(cNext); /* put the character back */
}
}
/* is it one of the commands listed above? */
for (i = 2; i < ncommands; i++) {
if (possible_match[i]) {
if (cThis == command[i][cmd_pos])
any_possible_match = TRUE;
else
possible_match[i] = FALSE;
diagnostics(6,"cmd_pos = %d, char = %c, possible match %s, size=%d, possible=%d", \
cmd_pos,cThis,command[i],strlen(command[i]),possible_match[i]);
}
}
i_match = -1;
for (i = 2; i < ncommands; i++) { /* discover any exact matches */
if (possible_match[i]) {
diagnostics(6, "testing for <%s>", command[i]);
/* right length? */
if (cmd_pos+1 == strlen(command[i])) {
if (i<=e_comment_item || i==e_comment_item) {
/* these entries are complete matches */
found = TRUE;
} else {
/* these entries we need to be a bit more careful and check next character */
cNext = getRawTexChar();
ungetTexChar(cNext);
/* this test for the end of commands may still need tweaking */
if (!isalpha(cNext) && cNext != '*') {
found = TRUE;
}
}
}
}
if (found == TRUE) {
diagnostics(6,"preparse matched '%s'",command[i]);
i_match = i;
break;
}
}
if (any_possible_match)
cmd_pos++;
else
cmd_pos = 0; /* no possible matches, reset and wait for next '\\' */
if (!found)
continue;
if (i_match == endinput_item) {
diagnostics(6, "\\endinput");
move_end_of_buffer(-9); /* remove \endinput */
PopSource();
cmd_pos = 0; /* keep looking */
continue;
}
/* \end{document} reached! Stop processing */
if (i_match == e_document_item) {
diagnostics(6, "\\end{document}");
move_end_of_buffer(-strlen(command[e_document_item]));
add_chr_to_buffer('\0');
safe_free(*header);
*header = strdup(command[e_document_item]);
p = section_buffer;
while (*p==' ' || *p == '\n') p++;
*body = strdup(p);
PopTrackLineNumber();
diagnostics(6, "body = %s", section_buffer);
diagnostics(6, "next header = '%s'", command[e_document_item]);
return;
}
if (i_match == verb_item) { /* slurp \verb#text# */
char cc;
cNext = getRawTexChar();
add_chr_to_buffer(cNext);
diagnostics(6, "verb char = %c", cNext);
do {
cc = getRawTexChar();
add_chr_to_buffer(cc);
} while (cc != cNext && cc != '\0');
cmd_pos = 0; /* reset the command position */
continue;
}
/* cannot ignore this because it may contain unescaped '%' */
if (i_match == url_item || i_match == nolinkurl_item) {
char cc;
do {
cc = getRawTexChar();
add_chr_to_buffer(cc);
} while (cc != '\0' && cc != '}');
cmd_pos = 0; /* reset the command position */
continue;
}
if (i_match == include_item) {
CmdInclude(0);
move_end_of_buffer(-strlen(command[i]));
cmd_pos = 0; /* reset the command position */
continue;
}
if (i_match == input_item) {
CmdInclude(1);
move_end_of_buffer(-strlen(command[i]));
cmd_pos = 0; /* reset the command position */
continue;
}
if (i_match == label_item) {
char *tag;
tag = getBraceParam();
/* append \label{tag} to the buffer */
add_chr_to_buffer('{');
add_str_to_buffer(tag);
add_chr_to_buffer('}');
if (!(*label) && strlen(tag) && label_depth == 0)
*label = strdup_nobadchars(tag);
free(tag);
cmd_pos = 0; /* keep looking */
continue;
}
/* process any new definitions */
if (i_match == def_item || i_match == new_item || i_match == renew_item) {
cNext = getRawTexChar(); /* wrong when cNext == '%' */
ungetTexChar(cNext);
if (isalpha((int) cNext)) /* is macro name complete? */
continue;
move_end_of_buffer(-strlen(command[i])); /* do not include in buffer */
if (i_match == def_item)
CmdNewDef(DEF_DEF);
else if (i_match == new_item)
CmdNewDef(DEF_NEW);
else
CmdNewDef(DEF_RENEW);
cmd_pos = 0; /* keep looking */
continue;
}
if (i_match == b_figure_item || i_match == b_figure_item2 ||
i_match == b_equation_item || i_match == b_equation_item2 ||
i_match == b_eqnarray_item || i_match == b_eqnarray_item2 ||
i_match == b_table_item || i_match == b_table_item2 ||
i_match == b_description_item) {
label_depth++; /* labels now will not be the section label */
cmd_pos = 0;
continue;
}
if (i_match == e_figure_item || i_match == e_figure_item2 ||
i_match == e_equation_item || i_match == e_equation_item2 ||
i_match == e_eqnarray_item || i_match == e_eqnarray_item2 ||
i_match == e_table_item || i_match == e_table_item2 ||
i_match == e_description_item) {
label_depth--; /* labels may now be the section label */
cmd_pos = 0;
continue;
}
if (i_match == b_verbatim_item) { /* slurp environment ... toxic contents! */
s = getTexUntil(command[e_verbatim_item], TRUE);
add_str_to_buffer(s);
free(s);
add_str_to_buffer(command[e_verbatim_item]);
diagnostics(4,"matched \\end{verbatim}");
cmd_pos = 0; /* keep looking */
continue;
}
if (i_match == b_comment_item) { /* slurp environment ... toxic contents! */
s = getTexUntil(command[e_comment_item], TRUE);
add_str_to_buffer(s);
free(s);
add_str_to_buffer(command[e_comment_item]);
cmd_pos = 0; /* keep looking */
continue;
}
diagnostics(4, "possible end of section");
diagnostics(4, "label_depth = %d", label_depth);
if (label_depth > 0) /* still in a \begin{xxx} environment? */
continue;
/* actually found command to end the section */
diagnostics(4, "preParse() found command to end section");
s = getBraceParam();
next_header = strdup_together4(command[i], "{", s, "}");
free(s);
move_end_of_buffer(-strlen(command[i]));
add_chr_to_buffer('\0');
break;
}
/*eliminate white space at beginning of buffer */
p = section_buffer;
while (*p==' ' || *p == '\n') p++;
*body = strdup(p);
safe_free(*header);
*header = next_header;
PopTrackLineNumber();
}
void StPlayList::open(const StCString& thePath,
const StCString& theItem) {
StMutexAuto anAutoLock(myMutex);
// check if it is recently played playlist
bool hasTarget = !theItem.isEmpty();
StString aTarget = hasTarget ? theItem : thePath;
if(!hasTarget) {
for(size_t anIter = 0; anIter < myRecent.size(); ++anIter) {
const StHandle<StRecentItem>& aRecent = myRecent[anIter];
const StHandle<StFileNode>& aFile = aRecent->File;
if(aFile->size() != 1) {
continue;
}
if(thePath.isEquals(aFile->getPath())) {
hasTarget = true;
aTarget = aFile->getValue(0)->getSubPath();
break;
}
}
}
clear();
int aSearchDeep = myRecursionDeep;
StString aFolderPath;
StString aFileName;
if(StFolder::isFolder(thePath)) {
// add all files from the folder and subfolders
aFolderPath = thePath;
aSearchDeep = myRecursionDeep;
myPlsFile = addRecentFile(StFileNode(thePath)); // append to recent files list
} else if(StFileNode::isFileExists(thePath)) {
// search only current folder
StFileNode::getFolderAndFile(thePath, aFolderPath, aFileName);
aSearchDeep = 1;
bool hasSupportedExt = false;
StString anExt = StFileNode::getExtension(aFileName);
for(size_t anExtId = 0; anExtId < myExtensions.size() && !hasSupportedExt; ++anExtId) {
hasSupportedExt = anExt.isEqualsIgnoreCase(myExtensions[anExtId]);
}
// parse m3u playlist
if(anExt.isEqualsIgnoreCase(stCString("m3u"))
|| anExt.isEqualsIgnoreCase(stCString("m3u8"))) {
StHandle<StRawFile> aRawFile = new StRawFile(thePath);
if(aRawFile->readFile()) {
StFolder* aPlsFolder = new StFolder(aFolderPath, &myFoldersRoot);
myFoldersRoot.add(aPlsFolder);
StString aTitle;
for(char* anIter = skipBOM((char* )aRawFile->getBuffer()); anIter != NULL;) {
anIter = parseM3UIter(anIter, aPlsFolder, aTitle);
}
aRawFile.nullify();
if(myFirst != nullptr
&& myFirst->getNext() == nullptr) {
const StString aFirstPath = myFirst->getPath();
StString anItemExt = StFileNode::getExtension(aFirstPath);
if(anItemExt.isEqualsIgnoreCase(stCString("m3u"))
|| anItemExt.isEqualsIgnoreCase(stCString("m3u8"))) {
aRawFile = new StRawFile(aFirstPath);
if(aRawFile->readFile()) {
for(char* anIter = skipBOM((char* )aRawFile->getBuffer()); anIter != NULL;) {
anIter = parseM3UIter(anIter, NULL, aTitle);
}
remove(aFirstPath, false);
}
aRawFile.nullify();
}
}
myPlsFile = addRecentFile(StFileNode(thePath)); // append to recent files list
if(hasTarget) {
// set current item
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(anItem->getPath() == aTarget) {
myCurrent = anItem;
break;
}
}
}
anAutoLock.unlock();
signals.onPlaylistChange();
return;
}
}
if(!hasSupportedExt) {
// file with unsupported extension?
StFileNode* aFileNode = new StFileNode(thePath, &myFoldersRoot);
myFoldersRoot.add(aFileNode);
addPlayItem(new StPlayItem(aFileNode, myDefStParams));
}
} else {
// not a filesystem element - probably url or invalid path
StFileNode* aFileNode = new StFileNode(thePath, &myFoldersRoot);
myFoldersRoot.add(aFileNode);
addRecentFile(*aFileNode); // append to recent files list
addPlayItem(new StPlayItem(aFileNode, myDefStParams));
anAutoLock.unlock();
signals.onPlaylistChange();
return;
}
StFolder* aSubFolder = new StFolder(aFolderPath, &myFoldersRoot);
aSubFolder->init(myExtensions, aSearchDeep);
myFoldersRoot.add(aSubFolder);
addToPlayList(aSubFolder);
myCurrent = myFirst;
if(hasTarget || !aFileName.isEmpty()) {
// set current item
for(StPlayItem* anItem = myFirst; anItem != NULL; anItem = anItem->getNext()) {
if(anItem->getPath() == aTarget) {
myCurrent = anItem;
if(myPlsFile.isNull()) {
addRecentFile(*anItem->getFileNode()); // append to recent files list
}
break;
}
}
}
anAutoLock.unlock();
signals.onPlaylistChange();
}
static void
parse(SaxDrive dr) {
char c = skipBOM(dr);
int state = START_STATE;
while ('\0' != c) {
buf_protect(&dr->buf);
if (is_white(c) && '\0' == (c = buf_next_non_white(&dr->buf))) {
break;
}
if ('<' == c) {
c = buf_get(&dr->buf);
switch (c) {
case '?': /* instructions (xml or otherwise) */
c = read_instruction(dr);
break;
case '!': /* comment or doctype */
buf_protect(&dr->buf);
c = buf_get(&dr->buf);
if ('\0' == c) {
ox_sax_drive_error(dr, NO_TERM "DOCTYPE or comment not terminated");
goto DONE;
} else if ('-' == c) {
c = buf_get(&dr->buf); /* skip first - and get next character */
if ('-' != c) {
ox_sax_drive_error(dr, INVALID_FORMAT "bad comment format, expected <!--");
} else {
c = buf_get(&dr->buf); /* skip second - */
}
c = read_comment(dr);
} else {
int i;
int spaced = 0;
int line = dr->buf.line;
int col = dr->buf.col;
if (is_white(c)) {
spaced = 1;
c = buf_next_non_white(&dr->buf);
}
dr->buf.str = dr->buf.tail - 1;
for (i = 7; 0 < i; i--) {
c = buf_get(&dr->buf);
}
if (0 == strncmp("DOCTYPE", dr->buf.str, 7)) {
if (spaced) {
ox_sax_drive_error_at(dr, WRONG_CHAR "<!DOCTYPE can not included spaces", line, col);
}
if (START_STATE != state) {
ox_sax_drive_error(dr, OUT_OF_ORDER "DOCTYPE can not come after an element");
}
c = read_doctype(dr);
} else if (0 == strncasecmp("DOCTYPE", dr->buf.str, 7)) {
ox_sax_drive_error(dr, CASE_ERROR "expected DOCTYPE all in caps");
if (START_STATE != state) {
ox_sax_drive_error(dr, OUT_OF_ORDER "DOCTYPE can not come after an element");
}
c = read_doctype(dr);
} else if (0 == strncmp("[CDATA[", dr->buf.str, 7)) {
if (spaced) {
ox_sax_drive_error_at(dr, WRONG_CHAR "<![CDATA[ can not included spaces", line, col);
}
c = read_cdata(dr);
} else if (0 == strncasecmp("[CDATA[", dr->buf.str, 7)) {
ox_sax_drive_error(dr, CASE_ERROR "expected CDATA all in caps");
c = read_cdata(dr);
} else {
ox_sax_drive_error_at(dr, WRONG_CHAR "DOCTYPE, CDATA, or comment expected", line, col);
c = read_name_token(dr);
if ('>' == c) {
c = buf_get(&dr->buf);
}
}
}
break;
case '/': /* element end */
c = read_element_end(dr);
if (0 == stack_peek(&dr->stack)) {
state = AFTER_STATE;
}
break;
case '\0':
goto DONE;
default:
buf_backup(&dr->buf);
if (AFTER_STATE == state) {
ox_sax_drive_error(dr, OUT_OF_ORDER "multiple top level elements");
}
state = BODY_STATE;
c = read_element_start(dr);
if (0 == stack_peek(&dr->stack)) {
state = AFTER_STATE;
}
break;
}
} else {
buf_reset(&dr->buf);
c = read_text(dr);
}
}
DONE:
if (dr->stack.head < dr->stack.tail) {
char msg[256];
Nv sp;
if (dr->has.line) {
rb_ivar_set(dr->handler, ox_at_line_id, LONG2NUM(dr->buf.line));
}
if (dr->has.column) {
rb_ivar_set(dr->handler, ox_at_column_id, LONG2NUM(dr->buf.col));
}
for (sp = dr->stack.tail - 1; dr->stack.head <= sp; sp--) {
snprintf(msg, sizeof(msg) - 1, "%selement '%s' not closed", EL_MISMATCH, sp->name);
ox_sax_drive_error_at(dr, msg, dr->buf.line, dr->buf.col);
if (dr->has.end_element) {
VALUE args[1];
args[0] = sp->val;
rb_funcall2(dr->handler, ox_end_element_id, 1, args);
}
}
}
}
