1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
/**
* Copyright (c) 2015, Miloslav Nenadál <nenadalm@gmail.com>
*
* 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 code for generating tags for the Clojure language.
*/
#include "general.h"
#include <string.h>
#include "parse.h"
#include "read.h"
#include "routines.h"
#include "vstring.h"
#include "entry.h"
typedef enum {
K_FUNCTION,
K_NAMESPACE
} clojureKind;
static kindDefinition ClojureKinds[] = {
{true, 'f', "function", "functions"},
{true, 'n', "namespace", "namespaces"}
};
static int isNamespace (const char *strp)
{
return strncmp (++strp, "ns", 2) == 0 && isspace (strp[2]);
}
static int isCoreNamespace (const char *strp)
{
return strncmp (++strp, "clojure.core/ns", 15) == 0 && isspace (strp[15]);
}
static int isFunction (const char *strp)
{
return (strncmp (++strp, "defn", 4) == 0 && isspace (strp[4]));
}
static int isCoreFunction (const char *strp)
{
return (strncmp (++strp, "clojure.core/defn", 17) == 0 && isspace (strp[17]));
}
static int isQuote (const char *strp)
{
return strncmp (++strp, "quote", 5) == 0 && isspace (strp[5]);
}
static void functionName (vString * const name, const char *dbp)
{
const char *p;
if (*dbp == '\'')
dbp++;
else if (*dbp == '(' && isQuote (dbp))
{
dbp += 7;
while (isspace (*dbp))
dbp++;
}
for (p = dbp; *p != '\0' && *p != '(' && !isspace ((int) *p) && *p != ')';
p++)
vStringPut (name, *p);
}
const char* skipMetadata (const char *dbp)
{
while (1)
{
if (*dbp == '^')
{
dbp++;
if (*dbp == '{')
{
/* skipping an arraymap */
for (; *dbp != '\0' && *dbp != '}'; dbp++)
;
}
else
{
/* skip a keyword or a symbol */
for (; *dbp != '\0' && !isspace((unsigned char)*dbp); dbp++)
;
}
if (*dbp == '\0')
break;
dbp++;
while (isspace ((unsigned char)*dbp))
dbp++;
}
else
break;
}
return dbp;
}
static int makeNamespaceTag (vString * const name, const char *dbp)
{
dbp = skipMetadata (dbp);
functionName (name, dbp);
if (vStringLength (name) > 0 && ClojureKinds[K_NAMESPACE].enabled)
{
tagEntryInfo e;
initTagEntry (&e, vStringValue (name), K_NAMESPACE);
e.lineNumber = getInputLineNumber ();
e.filePosition = getInputFilePosition ();
return makeTagEntry (&e);
}
else
return CORK_NIL;
}
static void makeFunctionTag (vString * const name, const char *dbp, int scope_index)
{
dbp = skipMetadata (dbp);
functionName (name, dbp);
if (vStringLength (name) > 0 && ClojureKinds[K_FUNCTION].enabled)
{
tagEntryInfo e;
initTagEntry (&e, vStringValue (name), K_FUNCTION);
e.lineNumber = getInputLineNumber ();
e.filePosition = getInputFilePosition ();
e.extensionFields.scopeIndex = scope_index;
makeTagEntry (&e);
}
}
static void skipToSymbol (const char **p)
{
while (**p != '\0' && !isspace ((int) **p))
*p = *p + 1;
while (isspace ((int) **p))
*p = *p + 1;
}
static void findClojureTags (void)
{
vString *name = vStringNew ();
const char *p;
int scope_index = CORK_NIL;
while ((p = (char *)readLineFromInputFile ()) != NULL)
{
vStringClear (name);
while (isspace (*p))
p++;
if (*p == '(')
{
if (isNamespace (p) || isCoreNamespace (p))
{
skipToSymbol (&p);
scope_index = makeNamespaceTag (name, p);
}
else if (isFunction (p) || isCoreFunction (p))
{
skipToSymbol (&p);
makeFunctionTag (name, p, scope_index);
}
}
}
vStringDelete (name);
}
extern parserDefinition *ClojureParser (void)
{
static const char *const extensions[] = {
"clj", "cljs", "cljc", NULL
};
static const char *const aliases[] = {
NULL
};
parserDefinition *def = parserNew ("Clojure");
def->kindTable = ClojureKinds;
def->kindCount = ARRAY_SIZE (ClojureKinds);
def->extensions = extensions;
def->aliases = aliases;
def->parser = findClojureTags;
def->useCork = CORK_QUEUE;
return def;
}
|
