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Lerking
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h2inc_parser.py
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193
h2inc_parser.py
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# (c)2018 Jan Lerking
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# Convert a C-header file to an asm include file
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import sys
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import string
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#Creates a list of elements per line in file,
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#then adding this list as a single element in a global tuple
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def parseline(lines):
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tupline = [];
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word = [w for w in lines.split()]
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for w in word:
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if w in hdr_keywords:
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v=hdr_keywords[w]
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tupline.append(v)
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tupline.append(w)
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return tupline
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def parseparsed(tup):
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global multilinecomment
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parsedline = '';
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if len(tup)>0:
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if tup[0] == ELEMENT_TYPE_COMMENT_START:
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if tup[-1] == ELEMENT_TYPE_COMMENT_END:
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multilinecomment=False
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else:
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multilinecomment=True
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parsedline=parsecomment(tup)
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if tup[0] == ELEMENT_TYPE_COMMENT_MULTILINE and multilinecomment==True:
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parsedline=parsecomment(tup)
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if tup[0] == ELEMENT_TYPE_IFNDEF:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_DEFINE:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_INCLUDE:
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parsedline=parseinclude(tup)
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if tup[0] == ELEMENT_TYPE_ELIF:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_IF:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_ELSE:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_ENDIF:
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parsedline=parseendif(tup)
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if tup[0] == ELEMENT_TYPE_IFDEF:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_ERROR:
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parsedline=parsedefs(tup)
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if tup[0] == ELEMENT_TYPE_UNDEF:
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parsedline=parseundef(tup)
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if tup[0] == ELEMENT_TYPE_PRAGMA:
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parsedline=parsedefs(tup)
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else:
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parsedline=parseemptyline()
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return parsedline
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def parsecomment(element):
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global multilinecomment
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index = 0
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elist = element
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if elist[-1] == ELEMENT_TYPE_COMMENT_END:
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elist[-1] = '\n'
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if elist[0] in inc_keywords:
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elist[1]=inc_keywords[elist[0]]
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del elist[0]
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for e in elist:
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if e in inc_keywords:
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elist[index]=inc_keywords[e]
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del elist[index]
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index +=1
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if elist[-1] != '\n':
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elist.append('\n')
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line = ' '.join(elist)
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return line
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def parseemptyline():
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line='\n'
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return line
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def parsedefs(element):
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elist = element
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clist = []
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if len(elist)>2: #If more than 2 elements in line, 3rd element is a singleline comment.
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clist = parsecomment(elist)
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if elist[0] in inc_keywords:
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elist[1]=inc_keywords[elist[0]]
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del elist[0]
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if elist[-1] != '\n':
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elist.append('\n')
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line = ' '.join(elist)
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return line
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def parseinclude(element):
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elist = element
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if elist[0] in inc_keywords:
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elist[1]=inc_keywords[elist[0]]
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del elist[0]
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if len(elist)>2: #If more than 2 elements in line, 3rd element is a singleline comment.
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if elist[2] in inc_keywords:
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elist[3]=inc_keywords[elist[2]]
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del elist[2]
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if elist[-2] in inc_keywords:
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elist[-1]=inc_keywords[elist[-2]]
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del elist[-2]
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tempstr = str(elist[1])
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tempstr = tempstr.replace('<', '"')
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tempstr = tempstr.replace('.h>', '.inc"')
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tempstr = tempstr.replace('.h"', '.inc"')
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elist[1] = tempstr
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if elist[-1] != '\n':
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elist.append('\n')
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line = ' '.join(elist)
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return line
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def parseendif(element):
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elist = element
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if elist[0] in inc_keywords:
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elist[1]=inc_keywords[elist[0]]
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del elist[0]
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if len(elist) > 1:
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if elist[1] in inc_keywords:
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elist[2]=inc_keywords[elist[1]]
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del elist[1]
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if elist[-2] in inc_keywords:
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elist[-1]=inc_keywords[elist[-2]]
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del elist[-2]
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if elist[-1] != '\n':
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elist.append('\n')
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line = ' '.join(elist)
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return line
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def parseundef(element):
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elist = element
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if elist[0] in inc_keywords:
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elist[1]=inc_keywords[elist[0]]
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del elist[0]
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if elist[1] in inc_keywords:
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elist[2]=inc_keywords[elist[1]]
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del elist[1]
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if elist[-2] in inc_keywords:
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elist[-1]=inc_keywords[elist[-2]]
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del elist[-2]
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if elist[-1] != '\n':
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elist.append('\n')
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line = ' '.join(elist)
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return line
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multilinecomment = False
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ELEMENT_TYPE_DEFINE = 1
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ELEMENT_TYPE_INCLUDE = 2
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ELEMENT_TYPE_UNDEF = 3
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ELEMENT_TYPE_IFDEF = 4
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ELEMENT_TYPE_IFNDEF = 5
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ELEMENT_TYPE_IF = 6
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ELEMENT_TYPE_ELSE = 7
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ELEMENT_TYPE_ELIF = 8
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ELEMENT_TYPE_ENDIF = 9
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ELEMENT_TYPE_ERROR = 10
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ELEMENT_TYPE_PRAGMA = 11
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ELEMENT_TYPE_COMMENT_START = 20
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ELEMENT_TYPE_COMMENT_MULTILINE = 21
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ELEMENT_TYPE_COMMENT_END = 22
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hdr_keywords = {'/*': ELEMENT_TYPE_COMMENT_START,
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'*': ELEMENT_TYPE_COMMENT_MULTILINE,
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'*/': ELEMENT_TYPE_COMMENT_END,
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'#define': ELEMENT_TYPE_DEFINE,
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'#include': ELEMENT_TYPE_INCLUDE,
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'#undef': ELEMENT_TYPE_UNDEF,
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'#ifdef': ELEMENT_TYPE_IFDEF,
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'#ifndef': ELEMENT_TYPE_IFNDEF,
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'#if': ELEMENT_TYPE_IF,
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'#else': ELEMENT_TYPE_ELSE,
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'#elif': ELEMENT_TYPE_ELIF,
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'#endif': ELEMENT_TYPE_ENDIF,
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'#error': ELEMENT_TYPE_ERROR,
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'#pragma': ELEMENT_TYPE_PRAGMA}
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inc_keywords = {ELEMENT_TYPE_COMMENT_START: ';',
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ELEMENT_TYPE_COMMENT_MULTILINE: ';',
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ELEMENT_TYPE_COMMENT_END: '',
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ELEMENT_TYPE_DEFINE: '%define',
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ELEMENT_TYPE_INCLUDE: '%include',
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ELEMENT_TYPE_UNDEF: '%undef',
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ELEMENT_TYPE_IFDEF: '%ifdef',
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ELEMENT_TYPE_IFNDEF: '%ifndef',
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ELEMENT_TYPE_IF: '%if',
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ELEMENT_TYPE_ELSE: '%else',
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ELEMENT_TYPE_ELIF: '%elif',
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ELEMENT_TYPE_ENDIF: '%endif',
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ELEMENT_TYPE_ERROR: '%error',
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ELEMENT_TYPE_PRAGMA: '%pragma'}
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