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/*
*
* Copyright (c) 2019, Masatake YAMATO
* Copyright (c) 2019, Red Hat, K.K.
*
* 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.
*
* This module contains functions for generating tags for id="..." in a XML file
*/
#include "general.h" /* must always come first */
#include "entry.h"
#include "options.h"
#include "parse.h"
#include "read.h"
#include "routines.h"
#include "selectors.h"
#include "subparser.h"
#include "xml.h"
static void makeTagWithNotification (xmlNode *node,
const char *xpath,
const tagXpathMakeTagSpec *spec,
tagEntryInfo *tag,
void *userData);
typedef enum {
K_ID,
K_NSPREFIX,
K_ROOT,
} xmlKind;
#define ROOT_ELT_LETTER 'r'
static const char ROOT_ELT_LETTER_STR[2] = {ROOT_ELT_LETTER, '\0'};
static kindDefinition XmlKinds [] = {
{ true, 'i', "id", "id attributes" },
{ true, 'n', "nsprefix", "namespace prefixes" },
{ true, ROOT_ELT_LETTER, "root", "root elements" },
};
enum xmlXpathTables {
TABLE_MAIN,
TABLE_ID,
};
typedef enum {
F_NS_URI,
} xmlField;
static fieldDefinition XmlFields [] = {
{
.name = "uri",
.description = "uri associated with name prefix",
.enabled = true,
}
};
static void findNsPrefix (xmlNode *node,
const char *xpath,
const struct sTagXpathRecurSpec *spec,
xmlXPathContext *ctx,
void *userData);
static tagXpathTable XmlXpathMainTable [] = {
{ "//*",
LXPATH_TABLE_DO_RECUR,
{ .recurSpec = { .enter = findNsPrefix, .nextTable = TABLE_ID } }
},
};
static tagXpathTable XmlXpathIdTable [] = {
{ "./@id",
LXPATH_TABLE_DO_MAKE,
{ .makeTagSpec = { K_ID, ROLE_DEFINITION_INDEX,
.make = makeTagWithNotification,} }
},
};
static tagXpathTableTable xmlXpathTableTable[] = {
[TABLE_MAIN] = { ARRAY_AND_SIZE (XmlXpathMainTable) },
[TABLE_ID] = { ARRAY_AND_SIZE (XmlXpathIdTable) },
};
/* Pick up the root element specifier from "<!DOCTYPE...", and
* run DTD parser for the "[" ... "]>" area.
*
* optlib2c translates the following .ctags elements:
* ==========================================================
* --langdef=Xml
* --kinddef-Xml=r,root,root elements
* --mline-regex-Xml=/<!DOCTYPE[[:space:]]+([a-zA-Z0-9]+)[[:space:]]+[^[]+\[((.|[\n])+)\]>/\1/r/{mgroup=1}{_guest=DTD,2start,2end}
* ==========================================================
*/
static tagRegexTable XmlTagRegexTable [] = {
{"<!DOCTYPE[[:space:]]+([a-zA-Z0-9]+)[[:space:]]+[^[]*\\[((.|[\n])+)\\]>", "\\1",
ROOT_ELT_LETTER_STR, "{mgroup=1}{_guest=DTD,2start,2end}", NULL, true},
};
static int makeTagWithNotificationCommon (tagEntryInfo *tag,
xmlNode *node)
{
int n = makeTagEntry (tag);
subparser *sub;
foreachSubparser (sub, false)
{
xmlSubparser *xmlsub = (xmlSubparser *)sub;
if (xmlsub->makeTagEntryWithNodeNotify)
{
enterSubparser(sub);
xmlsub->makeTagEntryWithNodeNotify (xmlsub, node, tag);
leaveSubparser();
}
}
return n;
}
static void makeTagWithNotification (xmlNode *node,
const char *xpath CTAGS_ATTR_UNUSED,
const tagXpathMakeTagSpec *spec CTAGS_ATTR_UNUSED,
tagEntryInfo *tag,
void *userData CTAGS_ATTR_UNUSED)
{
makeTagWithNotificationCommon (tag, node);
}
static int makeNsPrefixTag (const char *name, xmlNode *node, xmlNsPtr ns)
{
int n = CORK_NIL;
tagEntryInfo tag;
vString *anon = NULL;
if (name)
initTagEntry (&tag, name, K_NSPREFIX);
else
{
anon = anonGenerateNew ("ns", K_NSPREFIX);
initTagEntry (&tag, vStringValue (anon), K_NSPREFIX);
markTagExtraBit (&tag, XTAG_ANONYMOUS);
}
/* TODO
* - move this code block to lxpath.c.
* - adjust the line number for nsprefixes forward. */
tag.lineNumber = XML_GET_LINE (node);
tag.filePosition = getInputFilePositionForLine (tag.lineNumber);
char *p = (char *)xmlGetNodePath (node);
if (ns->href && *ns->href)
attachParserField (&tag, false, XmlFields [F_NS_URI].ftype, (char *)ns->href);
n = makeTagWithNotificationCommon (&tag, node);
if (p)
xmlFree (p);
if (anon)
vStringDelete (anon);
return n;
}
static void findNsPrefix (xmlNode *node,
const char *xpath,
const struct sTagXpathRecurSpec *spec,
xmlXPathContext *ctx,
void *userData)
{
for (xmlNsPtr ns = node->nsDef; ns; ns = ns->next)
makeNsPrefixTag ((char *)ns->prefix, node, ns);
findXMLTags (ctx, node, spec->nextTable, userData);
}
static void runAfter (xmlXPathContext *ctx, xmlNode *root, void *user_data)
{
subparser *sub;
foreachSubparser (sub, false)
{
xmlSubparser *xmlsub = (xmlSubparser *)sub;
if (xmlsub->runXPathEngine)
{
enterSubparser(sub);
xmlsub->runXPathEngine (xmlsub, ctx, root);
leaveSubparser();
}
}
}
static void
findXmlTags (void)
{
findXMLTagsFull (NULL, NULL, TABLE_MAIN, runAfter, NULL);
}
extern parserDefinition*
XmlParser (void)
{
static const char *const extensions [] = { "xml", NULL };
parserDefinition* const def = parserNew ("XML");
static selectLanguage selectors[] = { selectByXpathFileSpec, NULL };
def->kindTable = XmlKinds;
def->kindCount = ARRAY_SIZE (XmlKinds);
def->extensions = extensions;
def->parser = findXmlTags;
def->tagXpathTableTable = xmlXpathTableTable;
def->tagXpathTableCount = ARRAY_SIZE (xmlXpathTableTable);
def->selectLanguage = selectors;
def->fieldTable = XmlFields;
def->fieldCount = ARRAY_SIZE (XmlFields);
def->tagRegexTable = XmlTagRegexTable;
def->tagRegexCount = ARRAY_SIZE(XmlTagRegexTable);
return def;
}
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