Module lib.htmltemplate.htmlparser
This script parse the template.html file and creates the template classes that can be used to compose a web page. This automatically creates the content of file lib/htmltemplate/htmlclasses.py
Expand source code
# Distributed under Pycameresp License
# Copyright (c) 2023 Remi BERTHOLET
""" This script parse the template.html file and creates the template classes
that can be used to compose a web page.
This automatically creates the content of file lib/htmltemplate/htmlclasses.py """
# pylint:disable=consider-using-f-string
import re
def findall(pattern, text):
""" Finds the %(xxx)s fields in the line """
spl = re.compile(pattern).split(text)
result = []
begin_tag = ""
end_tag = None
begin_format = ""
end_format = ""
initText = text
for s in spl:
text = text[len(s)+2:]
end = text.find(")s")
var = ""
if len(text) > 0:
var = text[:end]
result.append(var)
if var == "content":
begin_tag += s
end_tag = ""
elif end_tag is not None:
end_tag += s
if var != "":
if var in ["disabled","checked","active","selected","required","novalidate"]:
end_format += " b'%s' if self.%s else b'',"%(var, var)
else:
end_format += "self.%s,"%var
end_tag += "\x25s"
else:
begin_tag += s
if var != "":
if var in ["disabled","checked","active","selected","required","novalidate"]:
begin_format += " b'%s' if self.%s else b'',"%(var, var)
else:
begin_format += "self.%s,"%var
begin_tag += "\x25s"
text = text[end+2:]
if end_tag is None:
end_tag = ""
end_format = ""
return result, begin_tag, end_tag, begin_format, end_format
def parse(force=False):
""" Parse the www/template.html and createsthe content of file lib/htmltemplate/htmlclasses.py """
from htmltemplate import WWW_DIR, TEMPLATE_FILE, TEMPLATE_PY
# pylint: disable=duplicate-string-formatting-argument
# pylint:disable=unspecified-encoding
print("Parse html template")
lines = open(WWW_DIR+TEMPLATE_FILE).readlines()
py_class_file = open(TEMPLATE_PY,"w")
py_class_file.write("''' File automatically generated with template.html content '''\n# pylint:disable=missing-function-docstring\n# pylint:disable=global-variable-not-assigned\n# pylint:disable=trailing-whitespace\n# pylint:disable=too-many-lines\nfrom htmltemplate.template import Template \n")
stack = []
ignored = False
for line in lines:
if "<!--" in line:
spl = line.split("<!--")
if ":ignore_begin-->" in line:
ignored = True
elif ":ignore_end-->" in line:
ignored = False
elif ignored is False:
if ":begin-->" in line:
classname = spl[1].split(":begin-->")[0]
stack.append([classname,"",""])
elif ":end-->" in line:
classname = spl[1].split(":end-->")[0]
if classname != stack[-1][0]:
raise SyntaxError()
classname, text, comment = stack.pop()
attributes, begin_tag, end_tag, begin_format, end_format = findall(r'\%\([A-Za-z_0-9]*\)s',text)
print("Html template update %s"%classname)
classattributes = set()
for attribute in attributes:
classattributes.add(attribute)
classattributes = list(classattributes)
classattributes.sort()
comment = comment.rstrip()
py_class_file.write("""\n%s\n"""%comment)
if begin_tag != "":
py_class_file.write("""beg_tag%s = b'''%s'''\n"""%(classname,begin_tag))
if end_tag != "":
py_class_file.write("""end_tag%s = b'''%s'''\n"""%(classname,end_tag))
py_class_file.write("""def %s(*args, **params):\n"""%classname)
py_class_file.write("""\tself = Template(*(("%s",) + args), **params)\n\n"""%classname)
py_class_file.write("""\tdef get_begin(self):\n""")
if begin_format == "":
if begin_tag != "":
py_class_file.write("""\t\tglobal beg_tag%s\n"""%classname)
py_class_file.write("""\t\treturn beg_tag%s\n"""%(classname))
else:
py_class_file.write("""\t\treturn b''\n""")
else:
py_class_file.write("""\t\tglobal beg_tag%s\n"""%classname)
py_class_file.write("""\t\treturn beg_tag%s%s(%s)\n"""%(classname, "\x25",begin_format[:-1]))
py_class_file.write("""\tself.get_begin = get_begin\n\n""")
py_class_file.write("""\tdef get_end(self):\n""")
if end_format == "":
if end_tag != "":
py_class_file.write("""\t\tglobal end_tag%s\n"""%classname)
py_class_file.write("""\t\treturn end_tag%s\n"""%(classname))
else:
py_class_file.write("""\t\treturn b''\n""")
else:
py_class_file.write("""\t\tglobal end_tag%s\n"""%classname)
py_class_file.write("""\t\treturn end_tag%s%s(%s)\n"""%(classname, "\x25", end_format[:-1]))
py_class_file.write("""\tself.get_end = get_end\n\n""")
for attribute in classattributes:
if attribute in ["pattern"]:
py_class_file.write('\tself.{:<12} = params.get("{}", b"*")\n'.format(attribute,attribute))
elif attribute in ["id","name"]:
py_class_file.write('\tself.{:<12} = params.get("{}", b"%d"%id(self))\n'.format(attribute,attribute))
elif attribute in ["disabled","active","novalidate","required"]:
py_class_file.write('\tself.{:<12} = params.get("{}", False)\n'.format(attribute,attribute))
elif attribute in ["checked"]:
py_class_file.write('\tself.{:<12} = params.get("{}", True)\n'.format(attribute,attribute))
else:
py_class_file.write('\tself.{:<12} = params.get("{}", b"")\n'.format(attribute,attribute))
py_class_file.write('\tself.end_init(**params)\n')
py_class_file.write('\treturn self\n')
else:
raise SyntaxError()
else:
if ignored is False:
if line.strip() != "":
if len(stack) >= 1:
stack[-1][1] += line.strip()
stack[-1][2] += "# " +line.lstrip()
py_class_file.close()Functions
def findall(pattern, text)-
Finds the %(xxx)s fields in the line
Expand source code
def findall(pattern, text): """ Finds the %(xxx)s fields in the line """ spl = re.compile(pattern).split(text) result = [] begin_tag = "" end_tag = None begin_format = "" end_format = "" initText = text for s in spl: text = text[len(s)+2:] end = text.find(")s") var = "" if len(text) > 0: var = text[:end] result.append(var) if var == "content": begin_tag += s end_tag = "" elif end_tag is not None: end_tag += s if var != "": if var in ["disabled","checked","active","selected","required","novalidate"]: end_format += " b'%s' if self.%s else b'',"%(var, var) else: end_format += "self.%s,"%var end_tag += "\x25s" else: begin_tag += s if var != "": if var in ["disabled","checked","active","selected","required","novalidate"]: begin_format += " b'%s' if self.%s else b'',"%(var, var) else: begin_format += "self.%s,"%var begin_tag += "\x25s" text = text[end+2:] if end_tag is None: end_tag = "" end_format = "" return result, begin_tag, end_tag, begin_format, end_format def parse(force=False)-
Parse the www/template.html and createsthe content of file lib/htmltemplate/htmlclasses.py
Expand source code
def parse(force=False): """ Parse the www/template.html and createsthe content of file lib/htmltemplate/htmlclasses.py """ from htmltemplate import WWW_DIR, TEMPLATE_FILE, TEMPLATE_PY # pylint: disable=duplicate-string-formatting-argument # pylint:disable=unspecified-encoding print("Parse html template") lines = open(WWW_DIR+TEMPLATE_FILE).readlines() py_class_file = open(TEMPLATE_PY,"w") py_class_file.write("''' File automatically generated with template.html content '''\n# pylint:disable=missing-function-docstring\n# pylint:disable=global-variable-not-assigned\n# pylint:disable=trailing-whitespace\n# pylint:disable=too-many-lines\nfrom htmltemplate.template import Template \n") stack = [] ignored = False for line in lines: if "<!--" in line: spl = line.split("<!--") if ":ignore_begin-->" in line: ignored = True elif ":ignore_end-->" in line: ignored = False elif ignored is False: if ":begin-->" in line: classname = spl[1].split(":begin-->")[0] stack.append([classname,"",""]) elif ":end-->" in line: classname = spl[1].split(":end-->")[0] if classname != stack[-1][0]: raise SyntaxError() classname, text, comment = stack.pop() attributes, begin_tag, end_tag, begin_format, end_format = findall(r'\%\([A-Za-z_0-9]*\)s',text) print("Html template update %s"%classname) classattributes = set() for attribute in attributes: classattributes.add(attribute) classattributes = list(classattributes) classattributes.sort() comment = comment.rstrip() py_class_file.write("""\n%s\n"""%comment) if begin_tag != "": py_class_file.write("""beg_tag%s = b'''%s'''\n"""%(classname,begin_tag)) if end_tag != "": py_class_file.write("""end_tag%s = b'''%s'''\n"""%(classname,end_tag)) py_class_file.write("""def %s(*args, **params):\n"""%classname) py_class_file.write("""\tself = Template(*(("%s",) + args), **params)\n\n"""%classname) py_class_file.write("""\tdef get_begin(self):\n""") if begin_format == "": if begin_tag != "": py_class_file.write("""\t\tglobal beg_tag%s\n"""%classname) py_class_file.write("""\t\treturn beg_tag%s\n"""%(classname)) else: py_class_file.write("""\t\treturn b''\n""") else: py_class_file.write("""\t\tglobal beg_tag%s\n"""%classname) py_class_file.write("""\t\treturn beg_tag%s%s(%s)\n"""%(classname, "\x25",begin_format[:-1])) py_class_file.write("""\tself.get_begin = get_begin\n\n""") py_class_file.write("""\tdef get_end(self):\n""") if end_format == "": if end_tag != "": py_class_file.write("""\t\tglobal end_tag%s\n"""%classname) py_class_file.write("""\t\treturn end_tag%s\n"""%(classname)) else: py_class_file.write("""\t\treturn b''\n""") else: py_class_file.write("""\t\tglobal end_tag%s\n"""%classname) py_class_file.write("""\t\treturn end_tag%s%s(%s)\n"""%(classname, "\x25", end_format[:-1])) py_class_file.write("""\tself.get_end = get_end\n\n""") for attribute in classattributes: if attribute in ["pattern"]: py_class_file.write('\tself.{:<12} = params.get("{}", b"*")\n'.format(attribute,attribute)) elif attribute in ["id","name"]: py_class_file.write('\tself.{:<12} = params.get("{}", b"%d"%id(self))\n'.format(attribute,attribute)) elif attribute in ["disabled","active","novalidate","required"]: py_class_file.write('\tself.{:<12} = params.get("{}", False)\n'.format(attribute,attribute)) elif attribute in ["checked"]: py_class_file.write('\tself.{:<12} = params.get("{}", True)\n'.format(attribute,attribute)) else: py_class_file.write('\tself.{:<12} = params.get("{}", b"")\n'.format(attribute,attribute)) py_class_file.write('\tself.end_init(**params)\n') py_class_file.write('\treturn self\n') else: raise SyntaxError() else: if ignored is False: if line.strip() != "": if len(stack) >= 1: stack[-1][1] += line.strip() stack[-1][2] += "# " +line.lstrip() py_class_file.close()