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#include "help.h"
#include "lib/simple_viewer.h"
void full_help(const char *name)
{
int ch_num = -1;
/* dirty hack */
if(!strcmp(name, "Train Tracks"))
name = "Tracks";
/* search the help text for a chapter with this name */
for(int ch = 0; ch < help_numchapters; ++ch)
{
char *str = help_text + help_chapteroffsets[ch];
char *ptr = strchr(str, ':') + 1;
const char *namep = name;
if(*ptr++ != ' ')
continue;
while(*ptr == *namep && *ptr && *namep)
{
ptr++;
namep++;
}
if(*namep == '\0' && (*ptr == '\n' || *ptr == ' ')) /* full match */
{
ch_num = ch;
break;
}
}
if(ch_num < 0)
{
rb->splashf(HZ * 2, "No topic found for `%s' (REPORT ME!)", name);
return;
}
char *buf = smalloc(help_maxlen + 1);
rb->memset(buf, 0, help_maxlen + 1);
if(ch_num < help_numchapters - 1)
{
/* safe to look ahead */
memcpy(buf, help_text + help_chapteroffsets[ch_num], help_chapteroffsets[ch_num + 1] - help_chapteroffsets[ch_num]);
}
else
rb->strlcpy(buf, help_text + help_chapteroffsets[ch_num], help_maxlen + 1);
rb->lcd_set_foreground(LCD_WHITE);
unsigned old_bg = rb->lcd_get_background();
rb->lcd_set_background(LCD_BLACK);
view_text(name, buf);
rb->lcd_set_background(old_bg);
sfree(buf);
}
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