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#!/usr/bin/env python3
"""Utility functions for python scripts converting yaml to C++ headers."""
# from __future__ import print_function
# import argparse
import os
import sys
import traceback
import collections
import re
# import yaml # pip install pyyaml
def quote_or_nullptr(key, d):
if key in d:
return quote(d[key])
else:
return 'nullptr'
def validate_string(val, name, pattern):
'''
Validate a string.
Note that re.match anchors to the start of the string, so you don't need to
prefix the pattern with '^'. But it doesn't require matching to the end, so
you'll probably want to suffix '$'.
'''
if not isinstance(val, str):
raise ValueError('%s isn\'t a string' % name)
if re.match(pattern, val):
return val
else:
raise ValueError('%s doesn\'t match pattern %s' % (val, pattern))
return val
def validate_bool(val, name):
'''Validate a boolean.'''
if not isinstance(val, bool):
raise ValueError('%s isn\'t a boolean' % name)
return val
def validate_int_range(val, name, min, max):
'''Validate an integer and check it is within the interval [min, max].'''
if not isinstance(val, int):
raise ValueError('%s isn\'t an integer' % name)
if not min <= val <= max:
raise ValueError('%s isn\'t between %s and %s' % (name, min, max))
return val
def enumify(name, enum):
return "{enum}_{name}".format(enum=enum, name=name).replace(' ', '_').upper()
def quote(s):
if not isinstance(s, str):
raise ValueError('Expected a string but got %s' % repr(s))
return '"%s"' % s
def empty_set(typ):
return " set<%s>()" % typ
global LIST_TEMPLATE
LIST_TEMPLATE = """ {{ {list} }}"""
global SPELL_LIST_TEMPLATE
SPELL_LIST_TEMPLATE = """ {{\n{list}\n }}"""
def make_list(list_str, is_spell_list = False):
global LIST_TEMPLATE
#TODO: add linebreaks + indents to obey 80 chars?
if len(list_str.strip()) == 0:
return " {}"
elif is_spell_list:
return SPELL_LIST_TEMPLATE.format(list=list_str)
else:
return LIST_TEMPLATE.format(list=list_str)
def load_template(templatedir, name):
return open(os.path.join(templatedir, name)).read()
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