70 lines
1.7 KiB
Python
70 lines
1.7 KiB
Python
#!/usr/bin/env python
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def to_enum_hd(k, prefix):
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res = prefix + '_'
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for c in k.upper():
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if c == ':' or c == '-':
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res += '_'
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continue
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res += c
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return res
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def build_header(headers):
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res = {}
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for k in headers:
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size = len(k)
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if size not in res:
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res[size] = {}
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ent = res[size]
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c = k[-1]
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if c not in ent:
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ent[c] = []
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ent[c].append(k)
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return res
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def gen_enum(tokens, prefix):
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print '''\
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enum {'''
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for k in sorted(tokens):
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print '''\
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{},'''.format(to_enum_hd(k, prefix))
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print '''\
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{}_MAXIDX,
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}};'''.format(prefix)
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def gen_index_header(tokens, prefix, value_type, comp_fun, return_type, fail_value):
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print '''\
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{} lookup_token(const {} *name, size_t namelen) {{
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switch (namelen) {{'''.format(return_type, value_type)
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b = build_header(tokens)
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for size in sorted(b.keys()):
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ents = b[size]
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print '''\
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case {}:'''.format(size)
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print '''\
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switch (name[{}]) {{'''.format(size - 1)
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for c in sorted(ents.keys()):
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headers = sorted(ents[c])
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print '''\
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case '{}':'''.format(c)
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for k in headers:
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print '''\
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if ({}("{}", name, {})) {{
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return {};
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}}'''.format(comp_fun, k[:-1], size - 1, to_enum_hd(k, prefix))
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print '''\
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break;'''
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print '''\
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}
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break;'''
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print '''\
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}}
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return {};
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}}'''.format(fail_value)
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def gentokenlookup(tokens, prefix, value_type='uint8_t', comp_fun='util::streq_l', return_type='int', fail_value='-1'):
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gen_enum(tokens, prefix)
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print ''
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gen_index_header(tokens, prefix, value_type, comp_fun, return_type, fail_value)
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