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/* ========================================================================
* Copyright 2013-2022 Eduardo Chappa
* Copyright 2006-2007 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
/*======================================================================
editorial.c
Implements editorial text insertion/formatting
====*/
#include "../pith/headers.h"
#include "../pith/conf.h"
#include "../pith/state.h"
#include "../pith/margin.h"
#include "../pith/filter.h"
#include "../pith/handle.h"
#include "../pith/mailview.h"
#include "../pith/editorial.h"
/*
* Internal prototypes
*/
int quote_editorial(long, char *, LT_INS_S **, void *);
/*
* Struct to help with editorial comment insertion
*/
#define EDITORIAL_MAX 128
typedef struct _editorial_s {
char prefix[EDITORIAL_MAX];
int prelen;
char postfix[EDITORIAL_MAX];
int postlen;
int do_color;
} EDITORIAL_S;
char *
format_editorial(char *s, int width, int flags, HANDLE_S **handlesp, gf_io_t pc)
{
gf_io_t gc;
int *margin;
EDITORIAL_S es;
URL_HILITE_S uh;
/* ASSUMPTION #2,341: All MIME-decoding is done by now */
gf_set_readc(&gc, s, strlen(s), CharStar, 0);
margin = format_view_margin();
if(flags & FM_NOINDENT)
margin[0] = margin[1] = 0;
/* safety net */
if(width - (margin[0] + margin[1]) < 5){
margin[0] = margin[1] = 0;
if(width < 5)
width = 80;
}
width -= (margin[0] + margin[1]);
if(width > 40){
width -= 12;
es.prelen = MAX(2, MIN(margin[0] + 6, sizeof(es.prefix) - 3));
snprintf(es.prefix, sizeof(es.prefix), "%s[ ", repeat_char(es.prelen - 2, ' '));
es.postlen = 2;
strncpy(es.postfix, " ]", sizeof(es.postfix));
es.postfix[sizeof(es.postfix)-1] = '\0';
}
else if(width > 20){
width -= 6;
es.prelen = MAX(2, MIN(margin[0] + 3, sizeof(es.prefix) - 3));
snprintf(es.prefix, sizeof(es.prefix), "%s[ ", repeat_char(es.prelen - 2, ' '));
es.postlen = 2;
strncpy(es.postfix, " ]", sizeof(es.postfix));
es.postfix[sizeof(es.postfix)-1] = '\0';
}
else{
width -= 2;
strncpy(es.prefix, "[", sizeof(es.prefix));
es.prefix[sizeof(es.prefix)-1] = '\0';
strncpy(es.postfix, "]", sizeof(es.postfix));
es.postfix[sizeof(es.postfix)-1] = '\0';
es.prelen = 1;
es.postlen = 1;
}
es.do_color = (!(flags & FM_NOCOLOR) && (flags & FM_DISPLAY) && pico_usingcolor());
gf_filter_init();
/* catch urls */
if((F_ON(F_VIEW_SEL_URL, ps_global)
|| F_ON(F_VIEW_SEL_URL_HOST, ps_global)
|| F_ON(F_SCAN_ADDR, ps_global))
&& handlesp){
gf_link_filter(gf_line_test,
gf_line_test_opt(url_hilite,
gf_url_hilite_opt(&uh,handlesp,0)));
}
gf_link_filter(gf_wrap, gf_wrap_filter_opt(width, width, NULL, 0,
(handlesp ? GFW_HANDLES : GFW_NONE)));
gf_link_filter(gf_line_test, gf_line_test_opt(quote_editorial, &es));
/* If not for display, change to local end of line */
if(!(flags & FM_DISPLAY))
gf_link_filter(gf_nvtnl_local, NULL);
return(gf_pipe(gc, pc));
}
int
quote_editorial(long int linenum, char *line, LT_INS_S **ins, void *local)
{
COLOR_PAIR *col = NULL;
ins = gf_line_test_new_ins(ins, line,
((EDITORIAL_S *)local)->prefix,
((EDITORIAL_S *)local)->prelen);
if(((EDITORIAL_S *)local)->do_color
&& ps_global->VAR_METAMSG_FORE_COLOR
&& ps_global->VAR_METAMSG_BACK_COLOR
&& (col = new_color_pair(ps_global->VAR_METAMSG_FORE_COLOR,
ps_global->VAR_METAMSG_BACK_COLOR))){
if(!pico_is_good_colorpair(col))
free_color_pair(&col);
if(col){
char *p;
char normal_embed[(2 * RGBLEN) + 5];
char quote_color_embed[(2 * RGBLEN) + 5];
strncpy(quote_color_embed,
color_embed(col->fg, col->bg),
sizeof(quote_color_embed));
quote_color_embed[sizeof(quote_color_embed)-1] = '\0';
ins = gf_line_test_new_ins(ins, line,
quote_color_embed, (2 * RGBLEN) + 4);
/*
* If there was already a color change back to normal color
* in the line that was passed in, then instead of allowing
* that color change back to normal we want to change that
* to a color change back to our METAMSG color instead.
* Search line for that and modify it.
*/
strncpy(normal_embed,
color_embed(ps_global->VAR_NORM_FORE_COLOR,
ps_global->VAR_NORM_BACK_COLOR),
sizeof(normal_embed));
normal_embed[sizeof(normal_embed)-1] = '\0';
for(p = line; (p = strstr(p, normal_embed)); p++){
/*
* Replace the normal color with our special quoting
* color. No need to change it if there are no
* characters after the color change because we're
* going to change the color to normal right below
* this anyway.
*/
if(strlen(p) > strlen(quote_color_embed))
rplstr(p, strlen(p)+1, strlen(quote_color_embed), quote_color_embed);
}
ins = gf_line_test_new_ins(ins, line+strlen(line),
normal_embed, (2 * RGBLEN) + 4);
free_color_pair(&col);
}
}
ins = gf_line_test_new_ins(ins, line + strlen(line),
((EDITORIAL_S *)local)->postfix,
((EDITORIAL_S *)local)->postlen);
return(0);
}
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