node_condbool.c

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#include "config.h"
#include <assert.h>
#include <stdio.h>
#include "mutt/lib.h"
#include "node_condbool.h"
#include "definition.h"
#include "helpers.h"
#include "node.h"
#include "node_expando.h"
#include "parse.h"
#include "render.h"
 
struct ExpandoNode *node_condbool_new(const char *start, const char *end, int did, int uid)
{
  struct ExpandoNode *node = node_new();
 
  node->type = ENT_CONDBOOL;
  node->start = start;
  node->end = end;
 
  node->did = did;
  node->uid = uid;
  node->render = node_condbool_render;
 
  return node;
}
 
struct ExpandoNode *node_condbool_parse(const char *s, const char **parsed_until,
                                        const struct ExpandoDefinition *defs,
                                        ExpandoParserFlags flags,
                                        struct ExpandoParseError *error)
{
  const struct ExpandoDefinition *definition = defs;
 
  const char *format_end = skip_until_classic_expando(s);
  const char *expando_end = skip_classic_expando(format_end, defs);
  char expando[128] = { 0 };
  const int expando_len = expando_end - format_end;
  mutt_strn_copy(expando, format_end, expando_len, sizeof(expando));
 
  while (definition && definition->short_name)
  {
    if (mutt_str_equal(definition->short_name, expando))
    {
      if (definition->parse)
      {
        return definition->parse(s, parsed_until, definition->did,
                                 definition->uid, flags, error);
      }
      else
      {
        *parsed_until = expando_end;
        return node_condbool_new(format_end, expando_end, definition->did,
                                 definition->uid);
      }
    }
 
    definition++;
  }
 
  error->position = format_end;
  // L10N: e.g. "Unknown expando: %Q"
  snprintf(error->message, sizeof(error->message), _("Unknown expando: %%%.*s"),
           expando_len, format_end);
  return NULL;
}
 
int node_condbool_render(const struct ExpandoNode *node,
                         const struct ExpandoRenderData *rdata, struct Buffer *buf,
                         int max_cols, void *data, MuttFormatFlags flags)
{
  assert(node->type == ENT_CONDBOOL);
 
  const struct ExpandoRenderData *rd_match = find_get_number(rdata, node->did, node->uid);
  if (rd_match)
  {
    const long num = rd_match->get_number(node, data, flags);
    return (num != 0); // bool-ify
  }
 
  rd_match = find_get_string(rdata, node->did, node->uid);
  if (rd_match)
  {
    struct Buffer *buf_str = buf_pool_get();
    rd_match->get_string(node, data, flags, max_cols, buf_str);
    const size_t len = buf_len(buf_str);
    buf_pool_release(&buf_str);
 
    return (len > 0); // bool-ify
  }
 
  return 0;
}