/* Copyright (c) 2002,2003,2004,2009 James M. Kretchmar
*
* This file is part of Owl.
*
* Owl is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Owl 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 Owl. If not, see .
*
* ---------------------------------------------------------------
*
* As of Owl version 2.1.12 there are patches contributed by
* developers of the branched BarnOwl project, Copyright (c)
* 2006-2009 The BarnOwl Developers. All rights reserved.
*/
#include "owl.h"
#include
#include
static const char fileIdent[] = "$Id$";
/* initialize an fmtext with no data */
void owl_fmtext_init_null(owl_fmtext *f)
{
f->textlen=0;
f->textbuff=owl_strdup("");
f->fmbuff=owl_malloc(5);
f->colorbuff=owl_malloc(5);
f->fmbuff[0]=OWL_FMTEXT_ATTR_NONE;
f->colorbuff[0]=OWL_COLOR_DEFAULT;
}
/* Internal function. Set the attribute 'attr' from index 'first' to
* index 'last'
*/
void _owl_fmtext_set_attr(owl_fmtext *f, int attr, int first, int last)
{
int i;
for (i=first; i<=last; i++) {
f->fmbuff[i]=(unsigned char) attr;
}
}
/* Internal function. Add the attribute 'attr' to the existing
* attributes from index 'first' to index 'last'
*/
void _owl_fmtext_add_attr(owl_fmtext *f, int attr, int first, int last)
{
int i;
for (i=first; i<=last; i++) {
f->fmbuff[i]|=(unsigned char) attr;
}
}
/* Internal function. Set the color to be 'color' from index 'first'
* to index 'last
*/
void _owl_fmtext_set_color(owl_fmtext *f, int color, int first, int last)
{
int i;
for (i=first; i<=last; i++) {
f->colorbuff[i]=(unsigned char) color;
}
}
/* append text to the end of 'f' with attribute 'attr' and color
* 'color'
*/
void owl_fmtext_append_attr(owl_fmtext *f, char *text, int attr, int color)
{
int newlen;
newlen=strlen(f->textbuff)+strlen(text);
f->textbuff=owl_realloc(f->textbuff, newlen+2);
f->fmbuff=owl_realloc(f->fmbuff, newlen+2);
f->colorbuff=owl_realloc(f->colorbuff, newlen+2);
strcat(f->textbuff, text);
_owl_fmtext_set_attr(f, attr, f->textlen, newlen);
_owl_fmtext_set_color(f, color, f->textlen, newlen);
f->textlen=newlen;
}
/* Append normal, uncolored text 'text' to 'f' */
void owl_fmtext_append_normal(owl_fmtext *f, char *text)
{
owl_fmtext_append_attr(f, text, OWL_FMTEXT_ATTR_NONE, OWL_COLOR_DEFAULT);
}
/* Append normal text 'text' to 'f' with color 'color' */
void owl_fmtext_append_normal_color(owl_fmtext *f, char *text, int color)
{
owl_fmtext_append_attr(f, text, OWL_FMTEXT_ATTR_NONE, color);
}
/* Append bold text 'text' to 'f' */
void owl_fmtext_append_bold(owl_fmtext *f, char *text)
{
owl_fmtext_append_attr(f, text, OWL_FMTEXT_ATTR_BOLD, OWL_COLOR_DEFAULT);
}
/* Append reverse video text 'text' to 'f' */
void owl_fmtext_append_reverse(owl_fmtext *f, char *text)
{
owl_fmtext_append_attr(f, text, OWL_FMTEXT_ATTR_REVERSE, OWL_COLOR_DEFAULT);
}
/* Append reversed and bold, uncolored text 'text' to 'f' */
void owl_fmtext_append_reversebold(owl_fmtext *f, char *text)
{
owl_fmtext_append_attr(f, text, OWL_FMTEXT_ATTR_REVERSE | OWL_FMTEXT_ATTR_BOLD, OWL_COLOR_DEFAULT);
}
/* Add the attribute 'attr' to all text in 'f' */
void owl_fmtext_addattr(owl_fmtext *f, int attr)
{
/* add the attribute to all text */
int i, j;
j=f->textlen;
for (i=0; ifmbuff[i] |= attr;
}
}
/* Anywhere the color is NOT ALREDY SET, set the color to 'color'.
* Other colors are left unchanged
*/
void owl_fmtext_colorize(owl_fmtext *f, int color)
{
/* everywhere the color is OWL_COLOR_DEFAULT, change it to be 'color' */
int i, j;
j=f->textlen;
for(i=0; icolorbuff[i]==OWL_COLOR_DEFAULT) f->colorbuff[i] = color;
}
}
/* Internal function. Append text from 'in' between index 'start' and
* 'stop' to the end of 'f'
*/
void _owl_fmtext_append_fmtext(owl_fmtext *f, owl_fmtext *in, int start, int stop)
{
int newlen, i;
newlen=strlen(f->textbuff)+(stop-start+1);
f->textbuff=owl_realloc(f->textbuff, newlen+1);
f->fmbuff=owl_realloc(f->fmbuff, newlen+1);
f->colorbuff=owl_realloc(f->colorbuff, newlen+1);
strncat(f->textbuff, in->textbuff+start, stop-start+1);
f->textbuff[newlen]='\0';
for (i=start; i<=stop; i++) {
f->fmbuff[f->textlen+(i-start)]=in->fmbuff[i];
f->colorbuff[f->textlen+(i-start)]=in->colorbuff[i];
}
f->textlen=newlen;
}
/* append fmtext 'in' to 'f' */
void owl_fmtext_append_fmtext(owl_fmtext *f, owl_fmtext *in)
{
_owl_fmtext_append_fmtext(f, in, 0, in->textlen);
}
/* Append 'nspaces' number of spaces to the end of 'f' */
void owl_fmtext_append_spaces(owl_fmtext *f, int nspaces)
{
int i;
for (i=0; itextbuff));
}
/* add the formatted text to the curses window 'w'. The window 'w'
* must already be initiatlized with curses
*/
void owl_fmtext_curs_waddstr(owl_fmtext *f, WINDOW *w)
{
char *tmpbuff;
int position, trans1, trans2, len, lastsame;
if (w==NULL) {
owl_function_debugmsg("Hit a null window in owl_fmtext_curs_waddstr.");
return;
}
tmpbuff=owl_malloc(f->textlen+10);
position=0;
len=f->textlen;
while (position<=len) {
/* find the last char with the current format and color */
trans1=owl_util_find_trans(f->fmbuff+position, len-position);
trans2=owl_util_find_trans(f->colorbuff+position, len-position);
if (trans1fmbuff[position] & OWL_FMTEXT_ATTR_BOLD) {
wattron(w, A_BOLD);
}
if (f->fmbuff[position] & OWL_FMTEXT_ATTR_REVERSE) {
wattron(w, A_REVERSE);
}
if (f->fmbuff[position] & OWL_FMTEXT_ATTR_UNDERLINE) {
wattron(w, A_UNDERLINE);
}
/* set the color */
/* warning, this is sort of a hack */
if (owl_global_get_hascolors(&g)) {
if (f->colorbuff[position]!=OWL_COLOR_DEFAULT) {
wattron(w, COLOR_PAIR(f->colorbuff[position]));
}
}
/* add the text */
strncpy(tmpbuff, f->textbuff + position, lastsame-position+1);
tmpbuff[lastsame-position+1]='\0';
waddstr(w, tmpbuff);
position=lastsame+1;
}
owl_free(tmpbuff);
}
/* start with line 'aline' (where the first line is 0) and print
* 'lines' number of lines into 'out'
*/
int owl_fmtext_truncate_lines(owl_fmtext *in, int aline, int lines, owl_fmtext *out)
{
char *ptr1, *ptr2;
int i, offset;
/* find the starting line */
ptr1=in->textbuff;
if (aline!=0) {
for (i=0; itextbuff;
ptr2=strchr(ptr1, '\n');
if (!ptr2) {
_owl_fmtext_append_fmtext(out, in, offset, (in->textlen)-1);
return(-1);
}
_owl_fmtext_append_fmtext(out, in, offset, (ptr2-ptr1)+offset);
ptr1=ptr2+1;
}
return(0);
}
/* Truncate the message so that each line begins at column 'acol' and
* ends at 'bcol' or sooner. The first column is number 0. The new
* message is placed in 'out'. The message is * expected to end in a
* new line for now
*/
void owl_fmtext_truncate_cols(owl_fmtext *in, int acol, int bcol, owl_fmtext *out)
{
char *ptr1, *ptr2, *last;
int len, offset;
last=in->textbuff+in->textlen-1;
ptr1=in->textbuff;
while (ptr1<=last) {
ptr2=strchr(ptr1, '\n');
if (!ptr2) {
/* but this shouldn't happen if we end in a \n */
break;
}
if (ptr2==ptr1) {
owl_fmtext_append_normal(out, "\n");
ptr1++;
continue;
}
/* we need to check that we won't run over here */
len=bcol-acol;
if (len > (ptr2-(ptr1+acol))) {
/* the whole line fits with room to spare, don't take a full 'len' */
len=ptr2-(ptr1+acol);
}
if (len>last-ptr1) {
/* the whole rest of the text fits with room to spare, adjust for it */
len-=(last-ptr1);
}
if (len<=0) {
/* saftey check */
owl_fmtext_append_normal(out, "\n");
ptr1=ptr2+1;
continue;
}
offset=ptr1-in->textbuff;
_owl_fmtext_append_fmtext(out, in, offset+acol, offset+acol+len);
ptr1=ptr2+1;
}
}
/* Return the number of lines in 'f' */
int owl_fmtext_num_lines(owl_fmtext *f)
{
int lines, i;
if (f->textlen==0) return(0);
lines=0;
for (i=0; itextlen; i++) {
if (f->textbuff[i]=='\n') lines++;
}
/* if the last char wasn't a \n there's one more line */
if (f->textbuff[i-1]!='\n') lines++;
return(lines);
}
char *owl_fmtext_get_text(owl_fmtext *f)
{
return(f->textbuff);
}
/* set the charater at 'index' to be 'char'. If index is out of
* bounds don't do anything */
void owl_fmtext_set_char(owl_fmtext *f, int index, int ch)
{
if ((index < 0) || (index > f->textlen-1)) return;
f->textbuff[index]=ch;
}
/* Make a copy of the fmtext 'src' into 'dst' */
void owl_fmtext_copy(owl_fmtext *dst, owl_fmtext *src)
{
int mallocsize;
if (src->textlen==0) {
mallocsize=5;
} else {
mallocsize=src->textlen+2;
}
dst->textlen=src->textlen;
dst->textbuff=owl_malloc(mallocsize);
dst->fmbuff=owl_malloc(mallocsize);
dst->colorbuff=owl_malloc(mallocsize);
memcpy(dst->textbuff, src->textbuff, src->textlen+1);
memcpy(dst->fmbuff, src->fmbuff, src->textlen);
memcpy(dst->colorbuff, src->colorbuff, src->textlen);
}
/* highlight all instances of "string". Return the number of
* instances found. This is a case insensitive search.
*/
int owl_fmtext_search_and_highlight(owl_fmtext *f, char *string)
{
int found, len;
char *ptr1, *ptr2;
len=strlen(string);
found=0;
ptr1=f->textbuff;
while (ptr1-f->textbuff <= f->textlen) {
ptr2=stristr(ptr1, string);
if (!ptr2) return(found);
found++;
_owl_fmtext_add_attr(f, OWL_FMTEXT_ATTR_REVERSE,
ptr2 - f->textbuff,
ptr2 - f->textbuff + len - 1);
ptr1=ptr2+len;
}
return(found);
}
/* return 1 if the string is found, 0 if not. This is a case
* insensitive search.
*/
int owl_fmtext_search(owl_fmtext *f, char *string)
{
if (stristr(f->textbuff, string)) return(1);
return(0);
}
/* Append the text 'text' to 'f' and interpret the zephyr style
* formatting syntax to set appropriate attributes.
*/
void owl_fmtext_append_ztext(owl_fmtext *f, char *text)
{
int stacksize, curattrs, curcolor;
char *ptr, *txtptr, *buff, *tmpptr;
int attrstack[32], chrstack[32];
curattrs=OWL_FMTEXT_ATTR_NONE;
curcolor=OWL_COLOR_DEFAULT;
stacksize=0;
txtptr=text;
while (1) {
ptr=strpbrk(txtptr, "@{[<()>]}");
if (!ptr) {
/* add all the rest of the text and exit */
owl_fmtext_append_attr(f, txtptr, curattrs, curcolor);
return;
} else if (ptr[0]=='@') {
/* add the text up to this point then deal with the stack */
buff=owl_malloc(ptr-txtptr+20);
strncpy(buff, txtptr, ptr-txtptr);
buff[ptr-txtptr]='\0';
owl_fmtext_append_attr(f, buff, curattrs, curcolor);
owl_free(buff);
/* update pointer to point at the @ */
txtptr=ptr;
/* now the stack */
/* if we've hit our max stack depth, print the @ and move on */
if (stacksize==32) {
owl_fmtext_append_attr(f, "@", curattrs, curcolor);
txtptr++;
continue;
}
/* if it's an @@, print an @ and continue */
if (txtptr[1]=='@') {
owl_fmtext_append_attr(f, "@", curattrs, curcolor);
txtptr+=2;
continue;
}
/* if there's no opener, print the @ and continue */
tmpptr=strpbrk(txtptr, "(<[{ ");
if (!tmpptr || tmpptr[0]==' ') {
owl_fmtext_append_attr(f, "@", curattrs, curcolor);
txtptr++;
continue;
}
/* check what command we've got, push it on the stack, start
using it, and continue ... unless it's a color command */
buff=owl_malloc(tmpptr-ptr+20);
strncpy(buff, ptr, tmpptr-ptr);
buff[tmpptr-ptr]='\0';
if (!strcasecmp(buff, "@bold")) {
attrstack[stacksize]=OWL_FMTEXT_ATTR_BOLD;
chrstack[stacksize]=tmpptr[0];
stacksize++;
curattrs|=OWL_FMTEXT_ATTR_BOLD;
txtptr+=6;
owl_free(buff);
continue;
} else if (!strcasecmp(buff, "@b")) {
attrstack[stacksize]=OWL_FMTEXT_ATTR_BOLD;
chrstack[stacksize]=tmpptr[0];
stacksize++;
curattrs|=OWL_FMTEXT_ATTR_BOLD;
txtptr+=3;
owl_free(buff);
continue;
} else if (!strcasecmp(buff, "@i")) {
attrstack[stacksize]=OWL_FMTEXT_ATTR_UNDERLINE;
chrstack[stacksize]=tmpptr[0];
stacksize++;
curattrs|=OWL_FMTEXT_ATTR_UNDERLINE;
txtptr+=3;
owl_free(buff);
continue;
} else if (!strcasecmp(buff, "@italic")) {
attrstack[stacksize]=OWL_FMTEXT_ATTR_UNDERLINE;
chrstack[stacksize]=tmpptr[0];
stacksize++;
curattrs|=OWL_FMTEXT_ATTR_UNDERLINE;
txtptr+=8;
owl_free(buff);
continue;
/* if it's a color read the color, set the current color and
continue */
} else if (!strcasecmp(buff, "@color")
&& owl_global_get_hascolors(&g)
&& owl_global_is_colorztext(&g)) {
owl_free(buff);
txtptr+=7;
tmpptr=strpbrk(txtptr, "@{[<()>]}");
if (tmpptr &&
((txtptr[-1]=='(' && tmpptr[0]==')') ||
(txtptr[-1]=='<' && tmpptr[0]=='>') ||
(txtptr[-1]=='[' && tmpptr[0]==']') ||
(txtptr[-1]=='{' && tmpptr[0]=='}'))) {
/* grab the color name */
buff=owl_malloc(tmpptr-txtptr+20);
strncpy(buff, txtptr, tmpptr-txtptr);
buff[tmpptr-txtptr]='\0';
/* set it as the current color */
curcolor=owl_util_string_to_color(buff);
if (curcolor==-1) curcolor=OWL_COLOR_DEFAULT;
owl_free(buff);
txtptr=tmpptr+1;
continue;
} else {
}
} else {
/* if we didn't understand it, we'll print it. This is different from zwgc
* but zwgc seems to be smarter about some screw cases than I am
*/
owl_fmtext_append_attr(f, "@", curattrs, curcolor);
txtptr++;
continue;
}
} else if (ptr[0]=='}' || ptr[0]==']' || ptr[0]==')' || ptr[0]=='>') {
/* add the text up to this point first */
buff=owl_malloc(ptr-txtptr+20);
strncpy(buff, txtptr, ptr-txtptr);
buff[ptr-txtptr]='\0';
owl_fmtext_append_attr(f, buff, curattrs, curcolor);
owl_free(buff);
/* now deal with the closer */
txtptr=ptr;
/* first, if the stack is empty we must bail (just print and go) */
if (stacksize==0) {
buff=owl_malloc(5);
buff[0]=ptr[0];
buff[1]='\0';
owl_fmtext_append_attr(f, buff, curattrs, curcolor);
owl_free(buff);
txtptr++;
continue;
}
/* if the closing char is what's on the stack, turn off the
attribue and pop the stack */
if ((ptr[0]==')' && chrstack[stacksize-1]=='(') ||
(ptr[0]=='>' && chrstack[stacksize-1]=='<') ||
(ptr[0]==']' && chrstack[stacksize-1]=='[') ||
(ptr[0]=='}' && chrstack[stacksize-1]=='{')) {
int i;
stacksize--;
curattrs=OWL_FMTEXT_ATTR_NONE;
for (i=0; itextbuff) owl_free(f->textbuff);
if (f->fmbuff) owl_free(f->fmbuff);
if (f->colorbuff) owl_free(f->colorbuff);
}