/* inserts a character at the cursor */
void insertc(view_t *view,unsigned char c) {
/* check readonly */
if(view->buffer->readonly)
error_throw(ERR_READONLY);
/* check valid character */
if((char)c<0) return;
char *line=view->buffer->lines[view->cursor_line];
/* make sure the line is long enough */
view->buffer->lines[view->cursor_line]=strexpand(line,strlen(line)+2);
line=view->buffer->lines[view->cursor_line];
/* make a copy of the line */
char *tln=malloc(strlen(line)+2);
char *ln=tln;
sprintf(ln,"%s",line);
/* put the line back together */
/* copy the first part back */
line[0]='\0';
strncat(line,ln,view->cursor_x);
/* copy the character */
line[strlen(line)+1]='\0';
line[strlen(line)]=c;
/* copy the second part back */
ln+=view->cursor_x;
strcat(line,ln);
free(tln); /* free temporary buffer */
/* advance the cursor */
view->pref_x++;
clean_cursor_x(view);
/* we've been modified */
view->buffer->modified=1;
}
SC_FUNC int phopt_init(void)
{
int number, i, len;
char str[160];
/* count number of sequences */
for (number=0; sequences_cmp[number].find!=NULL; number++)
/* nothing */;
number++; /* include an item for the NULL terminator */
if ((sequences=(SEQUENCE*)malloc(number * sizeof(SEQUENCE)))==NULL)
return FALSE;
/* pre-initialize all to NULL (in case of failure) */
for (i=0; i<number; i++) {
sequences[i].find=NULL;
sequences[i].replace=NULL;
sequences[i].opc=0;
sequences[i].arg=0;
} /* for */
/* expand all strings */
for (i=0; i<number-1; i++) {
len = strexpand(str,(unsigned char*)sequences_cmp[i].find,sizeof str,SCPACK_TABLE);
assert(len<=sizeof str);
assert(len==(int)strlen(str)+1);
sequences[i].find=(char*)malloc(len);
if (sequences[i].find!=NULL)
strcpy((char*)sequences[i].find,str);
len = strexpand(str,(unsigned char*)sequences_cmp[i].replace,sizeof str,SCPACK_TABLE);
assert(len<=sizeof str);
assert(len==(int)strlen(str)+1);
sequences[i].replace=(char*)malloc(len);
if (sequences[i].replace!=NULL)
strcpy((char*)sequences[i].replace,str);
sequences[i].opc=sequences_cmp[i].opc;
sequences[i].arg=sequences_cmp[i].arg;
if (sequences[i].find==NULL || sequences[i].replace==NULL)
return phopt_cleanup();
} /* for */
return TRUE;
}
int main (int argc, char **argv)
{
int i;
char str[128];
for (i=0; i<58; i++) {
strexpand(str, errmsg[i], sizeof str, SCPACK_TABLE);
printf("%s", str);
} /* for */
return 0;
}
/* delete a character at the cursor */
void deletec(view_t *view) {
/* exit if there's nothing to delete */
if(view->cursor_x==0 && view->cursor_line==0)
return;
/* clean up our position */
clean_cursor_x(view);
clean_pref_x(view);
/* should we merge lines? */
if(view->cursor_x==0) {
/* merge lines */
char *line=view->buffer->lines[view->cursor_line];
view->buffer->lines[view->cursor_line-1]=
strexpand(view->buffer->lines[view->cursor_line-1],
strlen(view->buffer->lines[view->cursor_line-1])+
strlen(line));
view->pref_x=strlen(view->buffer->lines[view->cursor_line-1]);
strcat(view->buffer->lines[view->cursor_line-1],line);
free(line); /* free the line */
/* reduce line count */
view->buffer->line_count--;
/* scroll all future lines up */
int i;
for(i=view->cursor_line;i<view->buffer->line_count;i++)
view->buffer->lines[i]=view->buffer->lines[i+1];
/* move the cursor */
cursor_up(view);
return;
}
/* no line merging to be done */
/* get the line */
char *line=view->buffer->lines[view->cursor_line];
/* make a copy of the line */
char *tln=malloc(strlen(line)+2);
char *ln=tln;
sprintf(ln,"%s",line);
/* copy the first part back */
line[0]='\0';
strncat(line,ln,view->cursor_x-1);
/* copy the second part back */
ln+=view->cursor_x;
strcat(line,ln);
free(tln); /* free temporary buffer */
/* retreat the cursor */
view->pref_x--;
view->cursor_x--;
/* we've been modified */
view->buffer->modified=1;
}
int main(int argc, char **argv)
{
while(--argc > 0)
{
char *s= strexpand(*++argv, table);
if(s)
{
puts(s);
free(s);
}
else printf("strexpand(\"%s\") failed.\n",*argv);
}
return 0;
}
int gen_autodoc(FILE *fp, int cols, int tabsize, int flags, char **body_macros)
{
int err= 0;
char *fun, *sec, *text;
for(fun= stepfun(0); fun && (err==0); fun= stepfun(1))
{
if(flags & ADOC_FORM_FEEDS)
fputc('\f',fp);
fprintf(fp,"%s%*s\n\n",fun,(int)(cols-strlen(fun)),fun);
for(sec= stepsec(0); sec && (err==0); sec= stepsec(1))
{
/* indent the section heading with 3 spaces */
if(*sec)
fprintf(fp," %s\n",sec);
if( (text= getsec(sec)) )
{
if(text && *text)
{
char *x= strexpand(text, body_macros);
if(x)
{
if(tabsize > 0)
fexpand(fp,tabsize,x);
else
fputs(x,fp);
free(x);
}
else err= __LINE__;
}
fputc('\n',fp);
}
}
}
return err;
}
/* error
*
* Outputs an error message (note: msg is passed optionally).
* If an error is found, the variable "errflag" is set and subsequent
* errors are ignored until lex() finds a semicolon or a keyword
* (lex() resets "errflag" in that case).
*
* Global references: inpfname (reffered to only)
* fline (reffered to only)
* fcurrent (reffered to only)
* errflag (altered)
*/
SC_FUNC int error(long number,...)
{
static char *prefix[3]={ "error", "fatal error", "warning" };
static int lastline,errorcount;
static short lastfile;
char *msg,*pre,*filename;
va_list argptr;
char string[256];
int notice;
/* split the error field between the real error/warning number and an optional
* "notice" number
*/
notice=number >> (sizeof(long)*4);
number&=((unsigned long)~0) >> (sizeof(long)*4);
assert(number>0 && number<300);
/* errflag is reset on each semicolon.
* In a two-pass compiler, an error should not be reported twice. Therefore
* the error reporting is enabled only in the second pass (and only when
* actually producing output). Fatal errors may never be ignored.
*/
if ((errflag || sc_status!=statWRITE) && (number<100 || number>=200))
return 0;
/* also check for disabled warnings */
if (number>=200) {
int index=(number-200)/8;
int mask=1 << ((number-200)%8);
if ((warndisable[index] & mask)!=0) {
errline=-1;
errfile=-1;
return 0;
} /* if */
} /* if */
if (number<100){
assert(number>0 && number<sizearray(errmsg));
msg=errmsg[number];
pre=prefix[0];
errflag=TRUE; /* set errflag (skip rest of erroneous expression) */
errnum++;
} else if (number<200) {
assert((number-100)>=0 && (number-100)<sizearray(fatalmsg));
msg=fatalmsg[number-100];
pre=prefix[1];
errnum++; /* a fatal error also counts as an error */
} else {
assert((number-200)>=0 && (number-200)<sizearray(warnmsg));
msg=warnmsg[number-200];
pre=prefix[2];
warnnum++;
} /* if */
strexpand(string,(unsigned char *)msg,sizeof string-2,SCPACK_TABLE);
if (notice>0) {
int len;
assert(notice<sizearray(noticemsg));
strcat(string,"; ");
len=strlen(string);
strexpand(string+len,(unsigned char *)noticemsg[notice],sizeof string-len-1,SCPACK_TABLE);
} /* if */
strcat(string,"\n");
if (errline>0)
errstart=errline; /* forced error position, set single line destination */
else
errline=fline; /* normal error, errstart may (or may not) have been marked, endpoint is current line */
if (errstart>errline)
errstart=errline; /* special case: error found at end of included file */
if (errfile>=0) {
filename=get_inputfile(errfile);/* forced filename */
} else {
filename=inpfname; /* current file */
if (filename==NULL || strlen(filename)==0)
filename=get_sourcefile(0);
if (filename==NULL || strlen(filename)==0)
filename="(none)";
} /* if */
assert(filename!=NULL);
va_start(argptr,number);
if (strlen(errfname)==0) {
int start= (errstart==errline) ? -1 : errstart;
if (pc_error((int)number,string,filename,start,errline,argptr)) {
if (outf!=NULL) {
pc_closeasm(outf,TRUE);
outf=NULL;
} /* if */
longjmp(errbuf,3); /* user abort */
} /* if */
} else {
FILE *fp=fopen(errfname,"a");
if (fp!=NULL) {
if (errstart>=0 && errstart!=errline)
fprintf(fp,"%s(%d -- %d) : %s %03d: ",filename,errstart,errline,pre,(int)number);
else
fprintf(fp,"%s(%d) : %s %03d: ",filename,errline,pre,(int)number);
vfprintf(fp,string,argptr);
fclose(fp);
} /* if */
} /* if */
va_end(argptr);
if (number>=100 && number<200 || errnum>25){
if (strlen(errfname)==0) {
va_start(argptr,number);
pc_error(0,"\nCompilation aborted.",NULL,0,0,argptr);
va_end(argptr);
} /* if */
if (outf!=NULL) {
pc_closeasm(outf,TRUE);
outf=NULL;
} /* if */
longjmp(errbuf,2); /* fatal error, quit */
} /* if */
errline=-1;
errfile=-1;
/* check whether we are seeing many errors on the same line */
if ((errstart<0 && lastline!=fline) || lastline<errstart || lastline>fline || fcurrent!=lastfile)
errorcount=0;
lastline=fline;
lastfile=fcurrent;
if (number<200)
errorcount++;
if (errorcount>=3)
error(107); /* too many error/warning messages on one line */
return 0;
}
int gen_texinfo_header(FILE *fp, char *fname, char **header_macros)
{
int err= 0;
char *default_header=
"\\input texinfo @c -*-texinfo-*-\n"
"@comment %%**start of header\n"
"@setfilename PROJECT.guide\n"
"@settitle Autodocs for @code{PROJECT}\n"
"@paragraphindent 0\n"
"@iftex\n"
"@afourpaper\n"
"@finalout\n"
"@setchapternewpage on\n" /* odd */
"@end iftex\n"
"@comment %%**end of header\n\n"
"@ifinfo\n"
"@node Top\n"
"@top\n"
"This document describes @code{PROJECT} version REVISION.\n\n"
"@noindent Copyright @copyright{} COPYRIGHT\n"
"@end ifinfo\n\n"
"@titlepage\n"
"@title PROJECT\n"
"@subtitle Documentation taken from source code\n"
"@subtitle Edition EDITION for Version REVISION\n"
"@subtitle @today\n"
"@author AUTHOR\n\n"
"@page\n"
"@vskip 0pt plus 1filll\n"
"Copyright @copyright{} COPYRIGHT\n"
"@end titlepage\n"
"@headings double\n\n";
if(fname && *fname)
{
FILE *fh= fopen(fname,"r");
if(fh)
{
char *header= (char *)0;
size_t header_size= 0;
/* compute the size of the header file */
#ifdef BUGGY_FTELL
do {
(void)fgetc(fh);
if(!feof(fh))
++header_size;
} while(!feof(fh) || ferror(fh))
#else /* ftell() works fine */
if( fseek(fh,0L,2L) >= 0) /* 2 == OFFSET_END */
header_size= ftell(fh);
else
err= __LINE__;
#endif /* BUGGY_FTELL */
if(!ferror(fh) && header_size > 0)
{
if(fseek(fh,-header_size,1L) < 0) /* 1 == OFFSET_CURRENT */
err= __LINE__;
}
else err= __LINE__;
/* load the header */
if(err == 0)
{
if( (header= (char *)malloc( (header_size + 1) * sizeof(char) )) )
{
fread(header, sizeof(char), header_size, fh);
header[header_size]= '\0';
if( ferror(fh) )
{
free(header);
header= (char *)0;
err= __LINE__;
}
}
else err= __LINE__;
}
if(err == 0)
{
char *x= strexpand(header, header_macros);
if(x)
{
fputs(x,fp);
free(x);
}
else /* out of memory */
err= __LINE__;
}
fclose(fh);
}
}
/* error
*
* Outputs an error message (note: msg is passed optionally).
* If an error is found, the variable "errflag" is set and subsequent
* errors are ignored until lex() finds a semicolumn or a keyword
* (lex() resets "errflag" in that case).
*
* Global references: inpfname (referred to only)
* fline (referred to only)
* fcurrent (referred to only)
* errflag (altered)
*/
int
error(int number, ...)
{
static int lastline, lastfile, errorcount;
char *msg;
va_list argptr;
char string[1024];
int start;
/* errflag is reset on each semicolon.
* In a two-pass compiler, an error should not be reported twice. Therefore
* the error reporting is enabled only in the second pass (and only when
* actually producing output). Fatal errors may never be ignored.
*/
if (((errflag) || (sc_status != statWRITE)) &&
((number < 100) || (number >= 200)))
return 0;
if (number < 100)
{
if (number > 74) number = 74;
msg = errmsg[number - 1];
errflag = TRUE; /* set errflag (skip rest of erroneous expression) */
errnum++;
}
else if (number < 200)
{
if (number > 107) number = 107;
msg = fatalmsg[number - 100];
errnum++; /* a fatal error also counts as an error */
}
else
{
msg = warnmsg[number - 200];
warnnum++;
}
strexpand(string, (unsigned char *)msg, sizeof string, SCPACK_TABLE);
va_start(argptr, number);
start = (errstart == fline) ? -1 : errstart;
if (sc_error(number, string, inpfname, start, fline, argptr))
{
sc_closeasm(outf);
outf = NULL;
longjmp(errbuf, 3);
}
va_end(argptr);
if (((number >= 100) && (number < 200)) || (errnum > 250))
{
va_start(argptr, number);
sc_error(0, "\nCompilation aborted.", NULL, 0, 0, argptr);
va_end(argptr);
if (outf)
{
sc_closeasm(outf);
outf = NULL;
} /* if */
longjmp(errbuf, 2); /* fatal error, quit */
} /* if */
/* check whether we are seeing many errors on the same line */
if (((errstart < 0) && (lastline != fline)) ||
(lastline < errstart) || (lastline > fline) || (fcurrent != lastfile))
errorcount = 0;
lastline = fline;
lastfile = fcurrent;
if (number < 200)
errorcount++;
if (errorcount >= 3)
error(107); /* too many error/warning messages on one line */
return 0;
}
/*
* Parse the configuration file at `path' and execute the `action' call-back
* functions for any directives defined by the array of config options (first
* argument).
*
* For unknown directives that are encountered, you can optionally pass a
* call-back function for the third argument to be called for unknowns.
*
* Returns zero on success; otherwise returns -1 and errno should be consulted.
*/
int
parse_config(struct fp_config options[], const char *path,
int (*unknown)(struct fp_config *option, uint32_t line, char *directive,
char *value), uint16_t processing_options)
{
uint8_t bequals;
uint8_t bsemicolon;
uint8_t case_sensitive;
uint8_t comment = 0;
uint8_t end;
uint8_t found;
uint8_t have_equals = 0;
uint8_t quote;
uint8_t require_equals;
uint8_t strict_equals;
char p[2];
char *directive;
char *t;
char *value;
int error;
int fd;
ssize_t r = 1;
uint32_t dsize;
uint32_t line = 1;
uint32_t n;
uint32_t vsize;
uint32_t x;
off_t charpos;
off_t curpos;
char rpath[PATH_MAX];
/* Sanity check: if no options and no unknown function, return */
if (options == NULL && unknown == NULL)
return (-1);
/* Processing options */
bequals = (processing_options & FP_BREAK_ON_EQUALS) == 0 ? 0 : 1;
bsemicolon = (processing_options & FP_BREAK_ON_SEMICOLON) == 0 ? 0 : 1;
case_sensitive = (processing_options & FP_CASE_SENSITIVE) == 0 ? 0 : 1;
require_equals = (processing_options & FP_REQUIRE_EQUALS) == 0 ? 0 : 1;
strict_equals = (processing_options & FP_STRICT_EQUALS) == 0 ? 0 : 1;
/* Initialize strings */
directive = value = 0;
vsize = dsize = 0;
/* Resolve the file path */
if (realpath(path, rpath) == 0)
return (-1);
/* Open the file */
if ((fd = open(rpath, O_RDONLY)) < 0)
return (-1);
/* Read the file until EOF */
while (r != 0) {
r = read(fd, p, 1);
/* skip to the beginning of a directive */
while (r != 0 && (isspace(*p) || *p == '#' || comment ||
(bsemicolon && *p == ';'))) {
if (*p == '#')
comment = 1;
else if (*p == '\n') {
comment = 0;
line++;
}
r = read(fd, p, 1);
}
/* Test for EOF; if EOF then no directive was found */
if (r == 0) {
close(fd);
return (0);
}
/* Get the current offset */
curpos = lseek(fd, 0, SEEK_CUR) - 1;
if (curpos == -1) {
close(fd);
return (-1);
}
/* Find the length of the directive */
for (n = 0; r != 0; n++) {
if (isspace(*p))
break;
if (bequals && *p == '=') {
have_equals = 1;
break;
}
if (bsemicolon && *p == ';')
break;
r = read(fd, p, 1);
}
/* Test for EOF, if EOF then no directive was found */
if (n == 0 && r == 0) {
close(fd);
return (0);
}
/* Go back to the beginning of the directive */
error = (int)lseek(fd, curpos, SEEK_SET);
if (error == (curpos - 1)) {
close(fd);
return (-1);
}
/* Allocate and read the directive into memory */
if (n > dsize) {
if ((directive = realloc(directive, n + 1)) == NULL) {
close(fd);
return (-1);
}
dsize = n;
}
r = read(fd, directive, n);
/* Advance beyond the equals sign if appropriate/desired */
if (bequals && *p == '=') {
if (lseek(fd, 1, SEEK_CUR) != -1)
r = read(fd, p, 1);
if (strict_equals && isspace(*p))
*p = '\n';
}
/* Terminate the string */
directive[n] = '\0';
/* Convert directive to lower case before comparison */
if (!case_sensitive)
strtolower(directive);
/* Move to what may be the start of the value */
if (!(bsemicolon && *p == ';') &&
!(strict_equals && *p == '=')) {
while (r != 0 && isspace(*p) && *p != '\n')
r = read(fd, p, 1);
}
/* An equals sign may have stopped us, should we eat it? */
if (r != 0 && bequals && *p == '=' && !strict_equals) {
have_equals = 1;
r = read(fd, p, 1);
while (r != 0 && isspace(*p) && *p != '\n')
r = read(fd, p, 1);
}
/* If no value, allocate a dummy value and jump to action */
if (r == 0 || *p == '\n' || *p == '#' ||
(bsemicolon && *p == ';')) {
/* Initialize the value if not already done */
if (value == NULL && (value = malloc(1)) == NULL) {
close(fd);
return (-1);
}
value[0] = '\0';
goto call_function;
}
/* Get the current offset */
curpos = lseek(fd, 0, SEEK_CUR) - 1;
if (curpos == -1) {
close(fd);
return (-1);
}
/* Find the end of the value */
quote = 0;
end = 0;
while (r != 0 && end == 0) {
/* Advance to the next character if we know we can */
if (*p != '\"' && *p != '#' && *p != '\n' &&
(!bsemicolon || *p != ';')) {
r = read(fd, p, 1);
continue;
}
/*
* If we get this far, we've hit an end-key
*/
/* Get the current offset */
charpos = lseek(fd, 0, SEEK_CUR) - 1;
if (charpos == -1) {
close(fd);
return (-1);
}
/*
* Go back so we can read the character before the key
* to check if the character is escaped (which means we
* should continue).
*/
error = (int)lseek(fd, -2, SEEK_CUR);
if (error == -3) {
close(fd);
return (-1);
}
r = read(fd, p, 1);
/*
* Count how many backslashes there are (an odd number
* means the key is escaped, even means otherwise).
*/
for (n = 1; *p == '\\'; n++) {
/* Move back another offset to read */
error = (int)lseek(fd, -2, SEEK_CUR);
if (error == -3) {
close(fd);
return (-1);
}
r = read(fd, p, 1);
}
/* Move offset back to the key and read it */
error = (int)lseek(fd, charpos, SEEK_SET);
if (error == (charpos - 1)) {
close(fd);
return (-1);
}
r = read(fd, p, 1);
/*
* If an even number of backslashes was counted meaning
* key is not escaped, we should evaluate what to do.
*/
if ((n & 1) == 1) {
switch (*p) {
case '\"':
/*
* Flag current sequence of characters
* to follow as being quoted (hashes
* are not considered comments).
*/
quote = !quote;
break;
case '#':
/*
* If we aren't in a quoted series, we
* just hit an inline comment and have
* found the end of the value.
*/
if (!quote)
end = 1;
break;
case '\n':
/*
* Newline characters must always be
* escaped, whether inside a quoted
* series or not, otherwise they
* terminate the value.
*/
end = 1;
case ';':
if (!quote && bsemicolon)
end = 1;
break;
}
} else if (*p == '\n')
/* Escaped newline character. increment */
line++;
/* Advance to the next character */
r = read(fd, p, 1);
}
/* Get the current offset */
charpos = lseek(fd, 0, SEEK_CUR) - 1;
if (charpos == -1) {
close(fd);
return (-1);
}
/* Get the length of the value */
n = (uint32_t)(charpos - curpos);
if (r != 0) /* more to read, but don't read ending key */
n--;
/* Move offset back to the beginning of the value */
error = (int)lseek(fd, curpos, SEEK_SET);
if (error == (curpos - 1)) {
close(fd);
return (-1);
}
/* Allocate and read the value into memory */
if (n > vsize) {
if ((value = realloc(value, n + 1)) == NULL) {
close(fd);
return (-1);
}
vsize = n;
}
r = read(fd, value, n);
/* Terminate the string */
value[n] = '\0';
/* Cut trailing whitespace off by termination */
t = value + n;
while (isspace(*--t))
*t = '\0';
/* Escape the escaped quotes (replaceall is in string_m.c) */
x = strcount(value, "\\\""); /* in string_m.c */
if (x != 0 && (n + x) > vsize) {
if ((value = realloc(value, n + x + 1)) == NULL) {
close(fd);
return (-1);
}
vsize = n + x;
}
if (replaceall(value, "\\\"", "\\\\\"") < 0) {
/* Replace operation failed for some unknown reason */
close(fd);
return (-1);
}
/* Remove all new line characters */
if (replaceall(value, "\\\n", "") < 0) {
/* Replace operation failed for some unknown reason */
close(fd);
return (-1);
}
/* Resolve escape sequences */
strexpand(value); /* in string_m.c */
call_function:
/* Abort if we're seeking only assignments */
if (require_equals && !have_equals)
return (-1);
found = have_equals = 0; /* reset */
/* If there are no options defined, call unknown and loop */
if (options == NULL && unknown != NULL) {
error = unknown(NULL, line, directive, value);
if (error != 0) {
close(fd);
return (error);
}
continue;
}
/* Loop through the array looking for a match for the value */
for (n = 0; options[n].directive != NULL; n++) {
error = fnmatch(options[n].directive, directive,
FNM_NOESCAPE);
if (error == 0) {
found = 1;
/* Call function for array index item */
if (options[n].action != NULL) {
error = options[n].action(
&options[n],
line, directive, value);
if (error != 0) {
close(fd);
return (error);
}
}
} else if (error != FNM_NOMATCH) {
/* An error has occurred */
close(fd);
return (-1);
}
}
if (!found && unknown != NULL) {
/*
* No match was found for the value we read from the
* file; call function designated for unknown values.
*/
error = unknown(NULL, line, directive, value);
if (error != 0) {
close(fd);
return (error);
}
}
}
close(fd);
return (0);
}
