writer-xref.c

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/*
*   Copyright (c) 1998-2002, Darren Hiebert
*
*   This source code is released for free distribution under the terms of the
*   GNU General Public License version 2 or (at your option) any later version.
*
*   External interface to entry.c
*/
 
#include "general.h"  /* must always come first */
 
#include "entry.h"
#include "field_p.h"
#include "fmt_p.h"
#include "mio.h"
#include "options_p.h"
#include "ptag_p.h"
#include "writer_p.h"
 
#include <string.h>
 
 
static int writeXrefEntry  (tagWriter *writer CTAGS_ATTR_UNUSED,
                            MIO * mio, const tagEntryInfo *const tag,
                            void *clientData CTAGS_ATTR_UNUSED);
static int writeXrefPtagEntry (tagWriter *writer, MIO * mio, const ptagDesc *desc,
                               const char *const fileName,
                               const char *const pattern,
                               const char *const parserName,
                               void *clientData);
 
tagWriter xrefWriter = {
    .writeEntry = writeXrefEntry,
    .writePtagEntry = writeXrefPtagEntry,
    .printPtagByDefault = false,
    .preWriteEntry = NULL,
    .postWriteEntry = NULL,
    .rescanFailedEntry = NULL,
    .treatFieldAsFixed = NULL,
    .defaultFileName = NULL,
};
 
static int writeXrefPtagEntry (tagWriter *writer, MIO * mio, const ptagDesc *desc,
                               const char *const fileName,
                               const char *const pattern,
                               const char *const parserName,
                               void *clientData)
{
    tagEntryInfo e;
    vString *name = vStringNewInit(PSEUDO_TAG_PREFIX);
 
    memset (&e, 0, sizeof(e));
 
    e.isPseudoTag = 1;
 
    vStringCatS (name, desc->name);
    if (parserName)
    {
        vStringCatS (name, PSEUDO_TAG_SEPARATOR);
        vStringCatS (name, parserName);
    }
    e.name = vStringValue (name);
    e.inputFileName = fileName;
    e.pattern = pattern;
 
    int length = writeXrefEntry (writer, mio, &e, clientData);
 
    vStringDelete (name);
 
    return length;
}
 
static int writeXrefEntry (tagWriter *writer CTAGS_ATTR_UNUSED,
                           MIO * mio, const tagEntryInfo *const tag,
                           void *clientData CTAGS_ATTR_UNUSED)
{
    int length;
    static fmtElement *fmt1;
    static fmtElement *fmt2;
 
    if (Option.customXfmt)
        length = fmtPrint (Option.customXfmt, mio, tag);
    else
    {
        if (tag->isFileEntry)
            return 0;
 
        if (Option.tagFileFormat == 1)
        {
            if (fmt1 == NULL)
                fmt1 = fmtNew ("%-16N %4n %-16F %C");
            length = fmtPrint (fmt1, mio, tag);
        }
        else
        {
            if (fmt2 == NULL)
                fmt2 = fmtNew ("%-16N %-10K %4n %-16F %C");
            length = fmtPrint (fmt2, mio, tag);
        }
    }
 
    mio_putc (mio, '\n');
    length++;
 
    return length;
}