filter.h File Reference

Expando filtering. More...

#include "render.h"

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Functions
int	expando_filter (const struct Expando *exp, const struct ExpandoRenderCallback *erc, void *data, MuttFormatFlags flags, int max_cols, struct Buffer *buf)
	Render an Expando and run the result through a filter.

Detailed Description

Expando filtering.

Authors

• Richard Russon

Copyright

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file filter.h.

Function Documentation

expando_filter()

int expando_filter	(	const struct Expando *	exp,
		const struct ExpandoRenderCallback *	erc,
		void *	data,
		MuttFormatFlags	flags,
		int	max_cols,
		struct Buffer *	buf
	)

Render an Expando and run the result through a filter.

Parameters

[in]	exp	Expando containing the expando tree
[in]	erc	Expando Render Callback functions
[in]	data	Callback data
[in]	flags	Callback flags
[in]	max_cols	Number of screen columns (-1 means unlimited)
[out]	buf	Buffer in which to save string

Return values

obj	Number of bytes written to buf and screen columns used

Definition at line 138 of file filter.c.

{
  if (!exp || !exp->node)
    return 0;
 
  struct ExpandoNode *node = exp->node;
 
  bool is_pipe = check_for_pipe(node);
  int old_cols = max_cols;
  if (is_pipe)
    max_cols = -1;
 
  int rc = expando_render(exp, erc, data, flags, max_cols, buf);
 
  if (!is_pipe)
    return rc;
 
  filter_text(buf);
 
  // Strictly truncate to size
  size_t width = 0;
  size_t bytes = mutt_wstr_trunc(buf_string(buf), buf_len(buf), old_cols, &width);
  buf->data[bytes] = '\0';
 
  return width;
}

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