helpers.c

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#include "config.h"
#include <stddef.h>
#include <assert.h>
#include <ctype.h>
#include <stdbool.h>
#include "mutt/lib.h"
#include "helpers.h"
#include "definition.h"
#include "mutt_thread.h"
#include "render.h"
 
const struct ExpandoRenderData *find_get_number(const struct ExpandoRenderData *rdata,
                                                int did, int uid)
{
  if (!rdata)
    return NULL;
 
  for (; rdata->did != -1; rdata++)
  {
    if ((rdata->did == did) && (rdata->uid == uid) && rdata->get_number)
    {
      return rdata;
    }
  }
 
  return NULL;
}
 
const struct ExpandoRenderData *find_get_string(const struct ExpandoRenderData *rdata,
                                                int did, int uid)
{
  if (!rdata)
    return NULL;
 
  for (; rdata->did != -1; rdata++)
  {
    if ((rdata->did == did) && (rdata->uid == uid) && rdata->get_string)
    {
      return rdata;
    }
  }
 
  return NULL;
}
 
const char *skip_until_ch(const char *start, char terminator)
{
  while (*start)
  {
    if (*start == terminator)
    {
      break;
    }
 
    start++;
  }
 
  return start;
}
 
static bool is_valid_classic_expando(char ch)
{
  // NOTE(g0mb4): Maybe rework this?
  // if special expandos are added this list must be updated!
  return isalpha(ch) || (ch == ' ') || (ch == '!') || (ch == '(') ||
         (ch == '*') || (ch == '>') || (ch == '@') || (ch == '[') ||
         (ch == '^') || (ch == '{') || (ch == '|');
}
 
const char *skip_until_classic_expando(const char *start)
{
  while (*start && !is_valid_classic_expando(*start))
  {
    start++;
  }
 
  return start;
}
 
const char *skip_classic_expando(const char *str, const struct ExpandoDefinition *defs)
{
  assert(str);
  if (*str == '\0')
    return str;
 
  const struct ExpandoDefinition *definitions = defs;
 
  while (definitions && definitions->short_name)
  {
    const bool is_two_char = mutt_str_len(definitions->short_name) == 2;
    const char *name = definitions->short_name;
 
    if (is_two_char && (name[0] == *str) && (name[1] == *(str + 1)))
    {
      str++;
      break;
    }
 
    definitions++;
  }
 
  str++;
  return str;
}
 
void buf_lower_special(struct Buffer *buf)
{
  if (!buf || !buf->data)
    return;
 
  char *p = buf->data;
 
  while (*p)
  {
    if (*p == MUTT_SPECIAL_INDEX)
    {
      p += 2;
      continue;
    }
    else if (*p < MUTT_TREE_MAX)
    {
      p++;
      continue;
    }
 
    *p = tolower((unsigned char) *p);
    p++;
  }
}