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+#!/usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2006-2018 (ita)
+
+"""
+TeX/LaTeX/PDFLaTeX/XeLaTeX support
+
+Example::
+
+ def configure(conf):
+ conf.load('tex')
+ if not conf.env.LATEX:
+ conf.fatal('The program LaTex is required')
+
+ def build(bld):
+ bld(
+ features = 'tex',
+ type = 'latex', # pdflatex or xelatex
+ source = 'document.ltx', # mandatory, the source
+ outs = 'ps', # 'pdf' or 'ps pdf'
+ deps = 'crossreferencing.lst', # to give dependencies directly
+ prompt = 1, # 0 for the batch mode
+ )
+
+Notes:
+
+- To configure with a special program, use::
+
+ $ PDFLATEX=luatex waf configure
+
+- This tool does not use the target attribute of the task generator
+ (``bld(target=...)``); the target file name is built from the source
+ base name and the output type(s)
+"""
+
+import os, re
+from waflib import Utils, Task, Errors, Logs, Node
+from waflib.TaskGen import feature, before_method
+
+re_bibunit = re.compile(r'\\(?P<type>putbib)\[(?P<file>[^\[\]]*)\]',re.M)
+def bibunitscan(self):
+ """
+ Parses TeX inputs and try to find the *bibunit* file dependencies
+
+ :return: list of bibunit files
+ :rtype: list of :py:class:`waflib.Node.Node`
+ """
+ node = self.inputs[0]
+
+ nodes = []
+ if not node:
+ return nodes
+
+ code = node.read()
+ for match in re_bibunit.finditer(code):
+ path = match.group('file')
+ if path:
+ found = None
+ for k in ('', '.bib'):
+ # add another loop for the tex include paths?
+ Logs.debug('tex: trying %s%s', path, k)
+ fi = node.parent.find_resource(path + k)
+ if fi:
+ found = True
+ nodes.append(fi)
+ # no break
+ if not found:
+ Logs.debug('tex: could not find %s', path)
+
+ Logs.debug('tex: found the following bibunit files: %s', nodes)
+ return nodes
+
+exts_deps_tex = ['', '.ltx', '.tex', '.bib', '.pdf', '.png', '.eps', '.ps', '.sty']
+"""List of typical file extensions included in latex files"""
+
+exts_tex = ['.ltx', '.tex']
+"""List of typical file extensions that contain latex"""
+
+re_tex = re.compile(r'\\(?P<type>usepackage|RequirePackage|include|bibliography([^\[\]{}]*)|putbib|includegraphics|input|import|bringin|lstinputlisting)(\[[^\[\]]*\])?{(?P<file>[^{}]*)}',re.M)
+"""Regexp for expressions that may include latex files"""
+
+g_bibtex_re = re.compile('bibdata', re.M)
+"""Regexp for bibtex files"""
+
+g_glossaries_re = re.compile('\\@newglossary', re.M)
+"""Regexp for expressions that create glossaries"""
+
+class tex(Task.Task):
+ """
+ Compiles a tex/latex file.
+
+ .. inheritance-diagram:: waflib.Tools.tex.latex waflib.Tools.tex.xelatex waflib.Tools.tex.pdflatex
+ """
+
+ bibtex_fun, _ = Task.compile_fun('${BIBTEX} ${BIBTEXFLAGS} ${SRCFILE}', shell=False)
+ bibtex_fun.__doc__ = """
+ Execute the program **bibtex**
+ """
+
+ makeindex_fun, _ = Task.compile_fun('${MAKEINDEX} ${MAKEINDEXFLAGS} ${SRCFILE}', shell=False)
+ makeindex_fun.__doc__ = """
+ Execute the program **makeindex**
+ """
+
+ makeglossaries_fun, _ = Task.compile_fun('${MAKEGLOSSARIES} ${SRCFILE}', shell=False)
+ makeglossaries_fun.__doc__ = """
+ Execute the program **makeglossaries**
+ """
+
+ def exec_command(self, cmd, **kw):
+ """
+ Executes TeX commands without buffering (latex may prompt for inputs)
+
+ :return: the return code
+ :rtype: int
+ """
+ if self.env.PROMPT_LATEX:
+ # capture the outputs in configuration tests
+ kw['stdout'] = kw['stderr'] = None
+ return super(tex, self).exec_command(cmd, **kw)
+
+ def scan_aux(self, node):
+ """
+ Recursive regex-based scanner that finds included auxiliary files.
+ """
+ nodes = [node]
+ re_aux = re.compile(r'\\@input{(?P<file>[^{}]*)}', re.M)
+
+ def parse_node(node):
+ code = node.read()
+ for match in re_aux.finditer(code):
+ path = match.group('file')
+ found = node.parent.find_or_declare(path)
+ if found and found not in nodes:
+ Logs.debug('tex: found aux node %r', found)
+ nodes.append(found)
+ parse_node(found)
+ parse_node(node)
+ return nodes
+
+ def scan(self):
+ """
+ Recursive regex-based scanner that finds latex dependencies. It uses :py:attr:`waflib.Tools.tex.re_tex`
+
+ Depending on your needs you might want:
+
+ * to change re_tex::
+
+ from waflib.Tools import tex
+ tex.re_tex = myregex
+
+ * or to change the method scan from the latex tasks::
+
+ from waflib.Task import classes
+ classes['latex'].scan = myscanfunction
+ """
+ node = self.inputs[0]
+
+ nodes = []
+ names = []
+ seen = []
+ if not node:
+ return (nodes, names)
+
+ def parse_node(node):
+ if node in seen:
+ return
+ seen.append(node)
+ code = node.read()
+ for match in re_tex.finditer(code):
+
+ multibib = match.group('type')
+ if multibib and multibib.startswith('bibliography'):
+ multibib = multibib[len('bibliography'):]
+ if multibib.startswith('style'):
+ continue
+ else:
+ multibib = None
+
+ for path in match.group('file').split(','):
+ if path:
+ add_name = True
+ found = None
+ for k in exts_deps_tex:
+
+ # issue 1067, scan in all texinputs folders
+ for up in self.texinputs_nodes:
+ Logs.debug('tex: trying %s%s', path, k)
+ found = up.find_resource(path + k)
+ if found:
+ break
+
+
+ for tsk in self.generator.tasks:
+ if not found or found in tsk.outputs:
+ break
+ else:
+ nodes.append(found)
+ add_name = False
+ for ext in exts_tex:
+ if found.name.endswith(ext):
+ parse_node(found)
+ break
+
+ # multibib stuff
+ if found and multibib and found.name.endswith('.bib'):
+ try:
+ self.multibibs.append(found)
+ except AttributeError:
+ self.multibibs = [found]
+
+ # no break, people are crazy
+ if add_name:
+ names.append(path)
+ parse_node(node)
+
+ for x in nodes:
+ x.parent.get_bld().mkdir()
+
+ Logs.debug("tex: found the following : %s and names %s", nodes, names)
+ return (nodes, names)
+
+ def check_status(self, msg, retcode):
+ """
+ Checks an exit status and raise an error with a particular message
+
+ :param msg: message to display if the code is non-zero
+ :type msg: string
+ :param retcode: condition
+ :type retcode: boolean
+ """
+ if retcode != 0:
+ raise Errors.WafError('%r command exit status %r' % (msg, retcode))
+
+ def info(self, *k, **kw):
+ try:
+ info = self.generator.bld.conf.logger.info
+ except AttributeError:
+ info = Logs.info
+ info(*k, **kw)
+
+ def bibfile(self):
+ """
+ Parses *.aux* files to find bibfiles to process.
+ If present, execute :py:meth:`waflib.Tools.tex.tex.bibtex_fun`
+ """
+ for aux_node in self.aux_nodes:
+ try:
+ ct = aux_node.read()
+ except EnvironmentError:
+ Logs.error('Error reading %s: %r', aux_node.abspath())
+ continue
+
+ if g_bibtex_re.findall(ct):
+ self.info('calling bibtex')
+
+ self.env.env = {}
+ self.env.env.update(os.environ)
+ self.env.env.update({'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()})
+ self.env.SRCFILE = aux_node.name[:-4]
+ self.check_status('error when calling bibtex', self.bibtex_fun())
+
+ for node in getattr(self, 'multibibs', []):
+ self.env.env = {}
+ self.env.env.update(os.environ)
+ self.env.env.update({'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()})
+ self.env.SRCFILE = node.name[:-4]
+ self.check_status('error when calling bibtex', self.bibtex_fun())
+
+ def bibunits(self):
+ """
+ Parses *.aux* file to find bibunit files. If there are bibunit files,
+ runs :py:meth:`waflib.Tools.tex.tex.bibtex_fun`.
+ """
+ try:
+ bibunits = bibunitscan(self)
+ except OSError:
+ Logs.error('error bibunitscan')
+ else:
+ if bibunits:
+ fn = ['bu' + str(i) for i in range(1, len(bibunits) + 1)]
+ if fn:
+ self.info('calling bibtex on bibunits')
+
+ for f in fn:
+ self.env.env = {'BIBINPUTS': self.texinputs(), 'BSTINPUTS': self.texinputs()}
+ self.env.SRCFILE = f
+ self.check_status('error when calling bibtex', self.bibtex_fun())
+
+ def makeindex(self):
+ """
+ Searches the filesystem for *.idx* files to process. If present,
+ runs :py:meth:`waflib.Tools.tex.tex.makeindex_fun`
+ """
+ self.idx_node = self.inputs[0].change_ext('.idx')
+ try:
+ idx_path = self.idx_node.abspath()
+ os.stat(idx_path)
+ except OSError:
+ self.info('index file %s absent, not calling makeindex', idx_path)
+ else:
+ self.info('calling makeindex')
+
+ self.env.SRCFILE = self.idx_node.name
+ self.env.env = {}
+ self.check_status('error when calling makeindex %s' % idx_path, self.makeindex_fun())
+
+ def bibtopic(self):
+ """
+ Lists additional .aux files from the bibtopic package
+ """
+ p = self.inputs[0].parent.get_bld()
+ if os.path.exists(os.path.join(p.abspath(), 'btaux.aux')):
+ self.aux_nodes += p.ant_glob('*[0-9].aux')
+
+ def makeglossaries(self):
+ """
+ Lists additional glossaries from .aux files. If present, runs the makeglossaries program.
+ """
+ src_file = self.inputs[0].abspath()
+ base_file = os.path.basename(src_file)
+ base, _ = os.path.splitext(base_file)
+ for aux_node in self.aux_nodes:
+ try:
+ ct = aux_node.read()
+ except EnvironmentError:
+ Logs.error('Error reading %s: %r', aux_node.abspath())
+ continue
+
+ if g_glossaries_re.findall(ct):
+ if not self.env.MAKEGLOSSARIES:
+ raise Errors.WafError("The program 'makeglossaries' is missing!")
+ Logs.warn('calling makeglossaries')
+ self.env.SRCFILE = base
+ self.check_status('error when calling makeglossaries %s' % base, self.makeglossaries_fun())
+ return
+
+ def texinputs(self):
+ """
+ Returns the list of texinput nodes as a string suitable for the TEXINPUTS environment variables
+
+ :rtype: string
+ """
+ return os.pathsep.join([k.abspath() for k in self.texinputs_nodes]) + os.pathsep
+
+ def run(self):
+ """
+ Runs the whole TeX build process
+
+ Multiple passes are required depending on the usage of cross-references,
+ bibliographies, glossaries, indexes and additional contents
+ The appropriate TeX compiler is called until the *.aux* files stop changing.
+ """
+ env = self.env
+
+ if not env.PROMPT_LATEX:
+ env.append_value('LATEXFLAGS', '-interaction=batchmode')
+ env.append_value('PDFLATEXFLAGS', '-interaction=batchmode')
+ env.append_value('XELATEXFLAGS', '-interaction=batchmode')
+
+ # important, set the cwd for everybody
+ self.cwd = self.inputs[0].parent.get_bld()
+
+ self.info('first pass on %s', self.__class__.__name__)
+
+ # Hash .aux files before even calling the LaTeX compiler
+ cur_hash = self.hash_aux_nodes()
+
+ self.call_latex()
+
+ # Find the .aux files again since bibtex processing can require it
+ self.hash_aux_nodes()
+
+ self.bibtopic()
+ self.bibfile()
+ self.bibunits()
+ self.makeindex()
+ self.makeglossaries()
+
+ for i in range(10):
+ # There is no need to call latex again if the .aux hash value has not changed
+ prev_hash = cur_hash
+ cur_hash = self.hash_aux_nodes()
+ if not cur_hash:
+ Logs.error('No aux.h to process')
+ if cur_hash and cur_hash == prev_hash:
+ break
+
+ # run the command
+ self.info('calling %s', self.__class__.__name__)
+ self.call_latex()
+
+ def hash_aux_nodes(self):
+ """
+ Returns a hash of the .aux file contents
+
+ :rtype: string or bytes
+ """
+ try:
+ self.aux_nodes
+ except AttributeError:
+ try:
+ self.aux_nodes = self.scan_aux(self.inputs[0].change_ext('.aux'))
+ except IOError:
+ return None
+ return Utils.h_list([Utils.h_file(x.abspath()) for x in self.aux_nodes])
+
+ def call_latex(self):
+ """
+ Runs the TeX compiler once
+ """
+ self.env.env = {}
+ self.env.env.update(os.environ)
+ self.env.env.update({'TEXINPUTS': self.texinputs()})
+ self.env.SRCFILE = self.inputs[0].abspath()
+ self.check_status('error when calling latex', self.texfun())
+
+class latex(tex):
+ "Compiles LaTeX files"
+ texfun, vars = Task.compile_fun('${LATEX} ${LATEXFLAGS} ${SRCFILE}', shell=False)
+
+class pdflatex(tex):
+ "Compiles PdfLaTeX files"
+ texfun, vars = Task.compile_fun('${PDFLATEX} ${PDFLATEXFLAGS} ${SRCFILE}', shell=False)
+
+class xelatex(tex):
+ "XeLaTeX files"
+ texfun, vars = Task.compile_fun('${XELATEX} ${XELATEXFLAGS} ${SRCFILE}', shell=False)
+
+class dvips(Task.Task):
+ "Converts dvi files to postscript"
+ run_str = '${DVIPS} ${DVIPSFLAGS} ${SRC} -o ${TGT}'
+ color = 'BLUE'
+ after = ['latex', 'pdflatex', 'xelatex']
+
+class dvipdf(Task.Task):
+ "Converts dvi files to pdf"
+ run_str = '${DVIPDF} ${DVIPDFFLAGS} ${SRC} ${TGT}'
+ color = 'BLUE'
+ after = ['latex', 'pdflatex', 'xelatex']
+
+class pdf2ps(Task.Task):
+ "Converts pdf files to postscript"
+ run_str = '${PDF2PS} ${PDF2PSFLAGS} ${SRC} ${TGT}'
+ color = 'BLUE'
+ after = ['latex', 'pdflatex', 'xelatex']
+
+@feature('tex')
+@before_method('process_source')
+def apply_tex(self):
+ """
+ Creates :py:class:`waflib.Tools.tex.tex` objects, and
+ dvips/dvipdf/pdf2ps tasks if necessary (outs='ps', etc).
+ """
+ if not getattr(self, 'type', None) in ('latex', 'pdflatex', 'xelatex'):
+ self.type = 'pdflatex'
+
+ outs = Utils.to_list(getattr(self, 'outs', []))
+
+ # prompt for incomplete files (else the batchmode is used)
+ try:
+ self.generator.bld.conf
+ except AttributeError:
+ default_prompt = False
+ else:
+ default_prompt = True
+ self.env.PROMPT_LATEX = getattr(self, 'prompt', default_prompt)
+
+ deps_lst = []
+
+ if getattr(self, 'deps', None):
+ deps = self.to_list(self.deps)
+ for dep in deps:
+ if isinstance(dep, str):
+ n = self.path.find_resource(dep)
+ if not n:
+ self.bld.fatal('Could not find %r for %r' % (dep, self))
+ if not n in deps_lst:
+ deps_lst.append(n)
+ elif isinstance(dep, Node.Node):
+ deps_lst.append(dep)
+
+ for node in self.to_nodes(self.source):
+ if self.type == 'latex':
+ task = self.create_task('latex', node, node.change_ext('.dvi'))
+ elif self.type == 'pdflatex':
+ task = self.create_task('pdflatex', node, node.change_ext('.pdf'))
+ elif self.type == 'xelatex':
+ task = self.create_task('xelatex', node, node.change_ext('.pdf'))
+
+ task.env = self.env
+
+ # add the manual dependencies
+ if deps_lst:
+ for n in deps_lst:
+ if not n in task.dep_nodes:
+ task.dep_nodes.append(n)
+
+ # texinputs is a nasty beast
+ if hasattr(self, 'texinputs_nodes'):
+ task.texinputs_nodes = self.texinputs_nodes
+ else:
+ task.texinputs_nodes = [node.parent, node.parent.get_bld(), self.path, self.path.get_bld()]
+ lst = os.environ.get('TEXINPUTS', '')
+ if self.env.TEXINPUTS:
+ lst += os.pathsep + self.env.TEXINPUTS
+ if lst:
+ lst = lst.split(os.pathsep)
+ for x in lst:
+ if x:
+ if os.path.isabs(x):
+ p = self.bld.root.find_node(x)
+ if p:
+ task.texinputs_nodes.append(p)
+ else:
+ Logs.error('Invalid TEXINPUTS folder %s', x)
+ else:
+ Logs.error('Cannot resolve relative paths in TEXINPUTS %s', x)
+
+ if self.type == 'latex':
+ if 'ps' in outs:
+ tsk = self.create_task('dvips', task.outputs, node.change_ext('.ps'))
+ tsk.env.env = dict(os.environ)
+ if 'pdf' in outs:
+ tsk = self.create_task('dvipdf', task.outputs, node.change_ext('.pdf'))
+ tsk.env.env = dict(os.environ)
+ elif self.type == 'pdflatex':
+ if 'ps' in outs:
+ self.create_task('pdf2ps', task.outputs, node.change_ext('.ps'))
+ self.source = []
+
+def configure(self):
+ """
+ Find the programs tex, latex and others without raising errors.
+ """
+ v = self.env
+ for p in 'tex latex pdflatex xelatex bibtex dvips dvipdf ps2pdf makeindex pdf2ps makeglossaries'.split():
+ try:
+ self.find_program(p, var=p.upper())
+ except self.errors.ConfigurationError:
+ pass
+ v.DVIPSFLAGS = '-Ppdf'
+