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import SCons.Util
import xml.dom.minidom, re
################################################################################
# XSL-FO builder
################################################################################
def generate(env) :
def generate_actions(source, target, env, for_signature) :
if len(env["FOCFG"]) > 0 :
cmd = "$FO -c $FOCFG $FOFLAGS $SOURCE $TARGET"
else :
cmd = "$FO $FOFLAGS $SOURCE $TARGET"
return SCons.Action.Action(cmd, cmdstr = "$FOCOMSTR")
def modify_sources(target, source, env) :
if len(env["FOCFG"]) > 0 :
source.append(env["FOCFG"])
return target, source
def scan_fo(node, env, path) :
dependencies = set()
try :
document = xml.dom.minidom.parseString(node.get_contents())
except xml.parsers.expat.ExpatError:
return []
for include in document.getElementsByTagNameNS("http://www.w3.org/1999/XSL/Format", "external-graphic") :
m = re.match("url\((.*)\)", include.getAttribute("src"))
if m :
dependencies.add(m.group(1))
return list(dependencies)
env["FO"] = "fop"
env["FOFLAGS"] = ""
env["FOCFG"] = ""
env["BUILDERS"]["FO"] = SCons.Builder.Builder(
generator = generate_actions,
emitter = modify_sources,
source_scanner = SCons.Scanner.Scanner(function = scan_fo, skeys = [".fo"]),
suffix = ".pdf",
src_suffix = ".fo"
)
def exists(env) :
return True
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Swift