summaryrefslogtreecommitdiff
path: root/man/docgen
blob: 0319bbc79883cb8d315f4fc6f7f45eecdc10487f (plain)
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
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
#!/usr/bin/env python
# 
# Command line parameter self-documentation tool.  Reads comments from
# the source code in the following form:
#
#   //!
#   // @arg <extra arguments>
#   // @category Category
#   // @platform <some platform that the parameter is specific to>
#   //
#   // Long description of the parameter
#   //
#
#   something_involving = M_CheckParm("-param");
#
# From this, a manpage can be automatically generated of the command
# line parameters.

import sys
import re
import glob
import getopt

class Category:
    def __init__(self, description):
        self.description = description
        self.params = []

    def add_param(self, param):
        self.params.append(param)

    # Find the maximum width of a parameter in this category

    def paramtext_width(self):
        w = 0

        for p in self.params:
            pw = len(p.name) + 5

            if p.args:
                pw += len(p.args)

            if pw > w:
                w = pw

        return w

    # Plain text output

    def plaintext_output(self):
        result = "=== %s ===\n\n" % self.description

        self.params.sort()

        w = self.paramtext_width()

        for p in self.params:
            if p.should_show():
                result += p.plaintext_output(w)

        result = result.rstrip() + "\n"

        return result

    def manpage_output(self):
        result = ".SH " + self.description.upper() + "\n"

        self.params.sort()

        for p in self.params:
            if p.should_show():
                result += ".TP\n"
                result += p.manpage_output()

        return result

    def wiki_output(self):
        result = "=== %s ===\n" % self.description

        self.params.sort()

        for p in self.params:
            if p.should_show():
                result += "; " + p.wiki_output() + "\n"

        # Escape special HTML characters

        result = result.replace("&", "&amp;")
        result = result.replace("<", "&lt;")
        result = result.replace(">", "&gt;")

        return result

categories = {
    None:      Category("General options"),
    "video":   Category("Display options"),
    "demo":    Category("Demo options"),
    "net":     Category("Networking options"),
    "mod":     Category("Dehacked and WAD merging"),
    "compat":  Category("Compatibility"),
}

wikipages = []

# Show options that are in Vanilla Doom? Or only new options?

show_vanilla_options = True

class Parameter:
    def __cmp__(self, other):
        if self.name < other.name:
            return -1
        else:
            return 1

    def __init__(self):
        self.text = ""
        self.name = ""
        self.args = None
        self.platform = None
        self.category = None
        self.vanilla_option = False

    def should_show(self):
        return not self.vanilla_option or show_vanilla_options

    def add_text(self, text):
        if len(text) <= 0:
            pass
        elif text[0] == "@":
            match = re.match('@(\S+)\s*(.*)', text)

            if not match:
                raise "Malformed option line: %s" % text

            option_type = match.group(1)
            data = match.group(2)
            
            if option_type == "arg":
                self.args = data
            elif option_type == "platform":
                self.platform = data
            elif option_type == "category":
                self.category = data
            elif option_type == "vanilla":
                self.vanilla_option = True
            else:
                raise "Unknown option type '%s'" % option_type

        else:
            self.text += text + " "

    def manpage_output(self):
        result = self.name

        if self.args:
            result += " " + self.args

        result = '\\fB' + result + '\\fR'

        result += "\n"

        if self.platform:
            result += "[%s only] " % self.platform

        escaped = re.sub('\\\\', '\\\\\\\\', self.text)

        result += escaped + "\n"

        return result

    def wiki_output(self):
        result = self.name

        if self.args:
            result += " " + self.args

        result += ": "

        result += add_wiki_links(self.text)

        if self.platform:
            result += "'''(%s only)'''" % self.platform

        return result

    def plaintext_output(self, w):

        # Build the first line, with the argument on

        line = "  " + self.name
        if self.args:
            line += " " + self.args

        # pad up to the plaintext width

        line += " " * (w - len(line))

        # Build the description text

        description = self.text

        if self.platform:
            description += " (%s only)" % self.platform

        # Build the complete text for the argument
        # Split the description into words and add a word at a time

        result = ""
        for word in re.split('\s+', description):

            # Break onto the next line?

            if len(line) + len(word) + 1 > 75:
                result += line + "\n"
                line = " " * w

            # Add another word

            line += word + " "

        result += line + "\n\n"

        return result

# Read list of wiki pages

def read_wikipages():
    f = open("wikipages")

    try:
        for line in f:
            line = line.rstrip()

            line = re.sub('\#.*$', '', line)

            if not re.match('^\s*$', line):
                wikipages.append(line)
    finally:
        f.close()

# Add wiki page links

def add_wiki_links(text):
    for pagename in wikipages:
        page_re = re.compile('(%s)' % pagename, re.IGNORECASE)
    #   text = page_re.sub("SHOES", text)
        text = page_re.sub('[[\\1]]', text)

    return text

def process_file(file):
    f = open(file)

    try:
        param = None
        waiting_for_checkparm = False

        for line in f:
            line = line.rstrip()

            # Currently reading a doc comment?

            if param:
                # End of doc comment

                if not re.match('\s*//', line):
                    waiting_for_checkparm = True

                # Waiting for the M_CheckParm call that contains the
                # name of the parameter we are documenting?

                if waiting_for_checkparm:
                    match = re.search('M_CheckParm\s*\(\s*"(.*?)"\s*\)', line)

                    if match:
                        # Found the name!  Finished documenting this 
                        # parameter.

                        param.name = match.group(1)
                        categories[param.category].add_param(param)
                        param = None

                else:
                    # More documentation text

                    munged_line = re.sub('\s*\/\/\s*', '', line, 1)
                    munged_line = re.sub('\s*$', '', munged_line)
                    param.add_text(munged_line)

            # Check for start of a doc comment

            if re.search("//!", line):
                param = Parameter()
                waiting_for_checkparm = False
    finally:
        f.close()

def process_files(dir):
    # Process all C source files.

    files = glob.glob(dir + "/*.c")

    for file in files:
        process_file(file)

def print_file_contents(file):
    f = open(file)

    try:
        for line in f:
            print line.rstrip()

    finally:
        f.close()

def manpage_output(dir): 

    process_files(dir)

    print_file_contents("header")

    print categories[None].manpage_output()

    for c in categories:
        if c != None:
            print categories[c].manpage_output()

    print_file_contents("footer")

def wiki_output(dir):
    read_wikipages()
    process_files(dir)

    print categories[None].wiki_output()

    for c in categories:
        if c != None:
            print categories[c].wiki_output()

def plaintext_output(dir):
    process_files(dir)

    print "== Command line parameters =="
    print 
    print "This is a list of the command line parameters supported by "
    print "Chocolate Doom.  A number of additional parameters are supported "
    print "in addition to those present in Vanilla Doom. "
    print

    print categories[None].plaintext_output()

    for c in categories:
        if c != None:
            print categories[c].plaintext_output()

def usage():
    print "Usage: %s [-V] ( -m | -w | -p ) <directory>" % sys.argv[0]
    print "   -m :  Manpage output"
    print "   -w :  Wikitext output"
    print "   -p :  Plaintext output"
    print "   -V :  Don't show Vanilla Doom options"
    sys.exit(0)

# Parse command line

opts, args = getopt.getopt(sys.argv[1:], "mwpV")

output_function = None

for opt in opts:
    if opt[0] == "-m":
        output_function = manpage_output
    elif opt[0] == "-w":
        output_function = wiki_output
    elif opt[0] == "-p":
        output_function = plaintext_output
    elif opt[0] == "-V":
        show_vanilla_options = False

if output_function == None or len(args) != 1:
    usage()
else:
    output_function(args[0])