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mirror of https://gitlab.gnome.org/GNOME/libxml2.git synced 2025-10-26 00:37:43 +03:00
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libxml2/doc/examples/index.py
Nick Wellnhofer 7458096766 Rework documentation build system
Since several generated files are under version control, their
timestamps are essentially random and rebuilding documentation using
Makefile rules can't work reliably. Simply add a phony rebuild target
that regenerates the whole documentation and other files
unconditionally.

    make -C doc rebuild
2022-03-29 16:24:19 +02:00

311 lines
8.8 KiB
Python
Executable File

#!/usr/bin/python -u
#
# Indexes the examples and build an XML description
#
import string
import glob
import sys
try:
import libxml2
except:
sys.exit(1)
sys.path.insert(0, "..")
from apibuild import CParser, escape
examples = []
extras = ['examples.xsl', 'index.html', 'index.py']
tests = []
sections = {}
symbols = {}
api_dict = None
api_doc = None
def load_api():
global api_dict
global api_doc
if api_dict != None:
return
api_dict = {}
try:
print "loading ../libxml2-api.xml"
api_doc = libxml2.parseFile("../libxml2-api.xml")
except:
print "failed to parse ../libxml2-api.xml"
sys.exit(1)
def find_symbol(name):
global api_dict
global api_doc
if api_doc == None:
load_api()
if name == None:
return
if api_dict.has_key(name):
return api_dict[name]
ctxt = api_doc.xpathNewContext()
res = ctxt.xpathEval("/api/symbols/*[@name = '%s']" % (name))
if type(res) == type([]) and len(res) >= 1:
if len(res) > 1:
print "Found %d references to %s in the API" % (len(res), name)
node = res[0]
typ = node.name
file = node.xpathEval("string(@file)")
info = node.xpathEval("string(info)")
else:
print "Reference %s not found in the API" % (name)
return None
ret = (typ, file, info)
api_dict[name] = ret
return ret
def parse_top_comment(filename, comment):
res = {}
lines = string.split(comment, "\n")
item = None
for line in lines:
while line != "" and (line[0] == ' ' or line[0] == '\t'):
line = line[1:]
while line != "" and line[0] == '*':
line = line[1:]
while line != "" and (line[0] == ' ' or line[0] == '\t'):
line = line[1:]
try:
(it, line) = string.split(line, ":", 1)
item = it
while line != "" and (line[0] == ' ' or line[0] == '\t'):
line = line[1:]
if res.has_key(item):
res[item] = res[item] + " " + line
else:
res[item] = line
except:
if item != None:
if res.has_key(item):
res[item] = res[item] + " " + line
else:
res[item] = line
return res
def parse(filename, output):
global symbols
global sections
parser = CParser(filename)
parser.collect_references()
idx = parser.parse()
info = parse_top_comment(filename, parser.top_comment)
output.write(" <example filename='%s'>\n" % filename)
try:
synopsis = info['synopsis']
output.write(" <synopsis>%s</synopsis>\n" % escape(synopsis));
except:
print "Example %s lacks a synopsis description" % (filename)
try:
purpose = info['purpose']
output.write(" <purpose>%s</purpose>\n" % escape(purpose));
except:
print "Example %s lacks a purpose description" % (filename)
try:
usage = info['usage']
output.write(" <usage>%s</usage>\n" % escape(usage));
except:
print "Example %s lacks an usage description" % (filename)
try:
test = info['test']
output.write(" <test>%s</test>\n" % escape(test));
progname=filename[0:-2]
command=string.replace(test, progname, './' + progname, 1)
tests.append(command)
except:
pass
try:
author = info['author']
output.write(" <author>%s</author>\n" % escape(author));
except:
print "Example %s lacks an author description" % (filename)
try:
copy = info['copy']
output.write(" <copy>%s</copy>\n" % escape(copy));
except:
print "Example %s lacks a copyright description" % (filename)
try:
section = info['section']
output.write(" <section>%s</section>\n" % escape(section));
if sections.has_key(section):
sections[section].append(filename)
else:
sections[section] = [filename]
except:
print "Example %s lacks a section description" % (filename)
for topic in info.keys():
if topic != "purpose" and topic != "usage" and \
topic != "author" and topic != "copy" and \
topic != "section" and topic != "synopsis" and topic != "test":
str = info[topic]
output.write(" <extra topic='%s'>%s</extra>\n" % (
escape(topic), escape(str)))
output.write(" <includes>\n")
for include in idx.includes.keys():
if include.find("libxml") != -1:
output.write(" <include>%s</include>\n" % (escape(include)))
output.write(" </includes>\n")
output.write(" <uses>\n")
for ref in idx.references.keys():
id = idx.references[ref]
name = id.get_name()
line = id.get_lineno()
if symbols.has_key(name):
sinfo = symbols[name]
refs = sinfo[0]
# gather at most 5 references per symbols
if refs > 5:
continue
sinfo.append(filename)
sinfo[0] = refs + 1
else:
symbols[name] = [1, filename]
info = find_symbol(name)
if info != None:
type = info[0]
file = info[1]
output.write(" <%s line='%d' file='%s' name='%s'/>\n" % (type,
line, file, name))
else:
type = id.get_type()
output.write(" <%s line='%d' name='%s'/>\n" % (type,
line, name))
output.write(" </uses>\n")
output.write(" </example>\n")
return idx
def dump_symbols(output):
global symbols
output.write(" <symbols>\n")
keys = symbols.keys()
keys.sort()
for symbol in keys:
output.write(" <symbol name='%s'>\n" % (symbol))
info = symbols[symbol]
i = 1
while i < len(info):
output.write(" <ref filename='%s'/>\n" % (info[i]))
i = i + 1
output.write(" </symbol>\n")
output.write(" </symbols>\n")
def dump_sections(output):
global sections
output.write(" <sections>\n")
keys = sections.keys()
keys.sort()
for section in keys:
output.write(" <section name='%s'>\n" % (section))
info = sections[section]
i = 0
while i < len(info):
output.write(" <example filename='%s'/>\n" % (info[i]))
i = i + 1
output.write(" </section>\n")
output.write(" </sections>\n")
def dump_Makefile():
for file in glob.glob('*.xml'):
extras.append(file)
for file in glob.glob('*.res'):
extras.append(file)
Makefile="""##
## This file is auto-generated by index.py
## DO NOT EDIT !!!
##
AM_CPPFLAGS = -I$(top_builddir)/include -I$(top_srcdir)/include -I$(srcdir)/include
AM_CFLAGS = $(THREAD_CFLAGS) $(Z_CFLAGS)
LDADD = $(RDL_LIBS) $(top_builddir)/libxml2.la $(THREAD_LIBS) $(Z_LIBS) $(ICONV_LIBS) -lm $(WIN32_EXTRA_LIBADD)
CLEANFILES = *.tmp
rebuild:
cd $(srcdir) && $(PYTHON) index.py
$(MAKE) Makefile
cd $(srcdir) && xsltproc examples.xsl examples.xml
-cd $(srcdir) && xmllint --valid --noout index.html
.PHONY: rebuild
install-data-local:
$(MKDIR_P) $(DESTDIR)$(HTML_DIR)/examples
-$(INSTALL) -m 0644 $(srcdir)/*.html $(srcdir)/*.c $(srcdir)/*.xml $(srcdir)/*.xsl $(srcdir)/*.res $(DESTDIR)$(HTML_DIR)/examples/
clean-local:
test -f Makefile.am || rm -f test?.xml
"""
examples.sort()
extras.sort()
tests.sort()
EXTRA_DIST=""
for extra in extras:
EXTRA_DIST = EXTRA_DIST + " \\\n\t" + extra
Makefile = Makefile + "EXTRA_DIST =%s\n\n" % (EXTRA_DIST)
check_PROGRAMS=""
for example in examples:
check_PROGRAMS = check_PROGRAMS + " \\\n\t" + example
Makefile = Makefile + "check_PROGRAMS =%s\n\n" % (check_PROGRAMS)
for example in examples:
Makefile = Makefile + "%s_SOURCES = %s.c\n\n" % (example, example)
Makefile = Makefile + "valgrind: \n\t$(MAKE) CHECKER='valgrind' tests\n\n"
Makefile = Makefile + "tests: $(check_PROGRAMS)\n"
Makefile = Makefile + "\t@test -f Makefile.am || test -f test1.xml || $(LN_S) $(srcdir)/test?.xml .\n"
Makefile = Makefile + "\t@(echo '## examples regression tests')\n"
Makefile = Makefile + "\t@(echo > .memdump)\n"
for test in tests:
Makefile = Makefile + "\t@$(CHECKER) %s\n" % (test)
Makefile = Makefile + '\t@grep "MORY ALLO" .memdump | grep -v "MEMORY ALLOCATED : 0" ; exit 0\n'
Makefile = Makefile + "\t@rm *.tmp\n"
try:
old = open("Makefile.am", "r").read()
if old != Makefile:
n = open("Makefile.am", "w").write(Makefile)
print "Updated Makefile.am"
except:
print "Failed to read or save Makefile.am"
# #
# # Autogenerate the .cvsignore too ... DEPRECATED
# #
# ignore = """.memdump
#Makefile.in
#Makefile
#"""
# for example in examples:
# ignore = ignore + "%s\n" % (example)
# try:
# old = open(".cvsignore", "r").read()
# if old != ignore:
# n = open(".cvsignore", "w").write(ignore)
# print "Updated .cvsignore"
# except:
# print "Failed to read or save .cvsignore"
if __name__ == "__main__":
load_api()
output = open("examples.xml", "w")
output.write("<examples>\n")
for file in sorted(glob.glob('*.c')):
parse(file, output)
examples.append(file[:-2])
dump_symbols(output)
dump_sections(output)
output.write("</examples>\n")
output.close()
dump_Makefile()