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| | #include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include <talloc.h>
#include "sprinter.h"
/* "Structured printer" interface for unstructured text printing.
* Note that --output=summary is dispatched and formatted in
* notmuch-search.c, the code in this file is only used for all other
* output types.
*/
struct sprinter_text {
struct sprinter vtable;
FILE *stream;
/* The current prefix to be printed with string/integer/boolean
* data.
*/
const char *current_prefix;
/* A flag to indicate if this is the first tag. Used in list of tags
* for summary.
*/
bool first_tag;
};
static void
text_string_len (struct sprinter *sp, const char *val, size_t len)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
if (sptxt->current_prefix != NULL)
fprintf (sptxt->stream, "%s:", sptxt->current_prefix);
fwrite (val, len, 1, sptxt->stream);
}
static void
text_string (struct sprinter *sp, const char *val)
{
if (val == NULL)
val = "";
text_string_len (sp, val, strlen (val));
}
static void
text_integer (struct sprinter *sp, int64_t val)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
fprintf (sptxt->stream, "%" PRId64, val);
}
static void
text_boolean (struct sprinter *sp, bool val)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
fputs (val ? "true" : "false", sptxt->stream);
}
static void
text_separator (struct sprinter *sp)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
fputc ('\n', sptxt->stream);
}
static void
text0_separator (struct sprinter *sp)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
fputc ('\0', sptxt->stream);
}
static void
text_set_prefix (struct sprinter *sp, const char *prefix)
{
struct sprinter_text *sptxt = (struct sprinter_text *) sp;
sptxt->current_prefix = prefix;
}
/* The structure functions begin_map, begin_list, end and map_key
* don't do anything in the text formatter.
*/
static void
text_begin_map (unused (struct sprinter *sp))
{
}
static void
text_begin_list (unused (struct sprinter *sp))
{
}
static void
text_end (unused (struct sprinter *sp))
{
}
static void
text_null (unused (struct sprinter *sp))
{
}
static void
text_map_key (unused (struct sprinter *sp), unused (const char *key))
{
}
struct sprinter *
sprinter_text_create (const void *ctx, FILE *stream)
{
static const struct sprinter_text template = {
.vtable = {
.begin_map = text_begin_map,
.begin_list = text_begin_list,
.end = text_end,
.string = text_string,
.string_len = text_string_len,
.integer = text_integer,
.boolean = text_boolean,
.null = text_null,
.map_key = text_map_key,
.separator = text_separator,
.set_prefix = text_set_prefix,
.is_text_printer = true,
},
};
struct sprinter_text *res;
res = talloc (ctx, struct sprinter_text);
if (! res)
return NULL;
*res = template;
res->stream = stream;
return &res->vtable;
}
struct sprinter *
sprinter_text0_create (const void *ctx, FILE *stream)
{
struct sprinter *sp;
sp = sprinter_text_create (ctx, stream);
if (! sp)
return NULL;
sp->separator = text0_separator;
return sp;
}
|