Mercurial > cpython-lru_cache-weakref
annotate Lib/string.py @ 3044:7e7bb00a0a2e legacy-trunk
Added functionality: locate CW projects, copy them, empty them and
binhex them.
| author | Jack Jansen <jack.jansen@cwi.nl> |
|---|---|
| date | Thu, 31 Aug 1995 13:47:14 +0000 |
| parents | 4f9d4e73057c |
| children | 70183592370e |
| rev | line source |
|---|---|
| 5 | 1 # module 'string' -- A collection of string operations |
| 2 | |
|
1260
b120cdd30fbc
* Fix bug in tzparse.py for DST timezone
Guido van Rossum <guido@python.org>
parents:
1095
diff
changeset
|
3 # Warning: most of the code you see here isn't normally used nowadays. |
|
b120cdd30fbc
* Fix bug in tzparse.py for DST timezone
Guido van Rossum <guido@python.org>
parents:
1095
diff
changeset
|
4 # At the end of this file most functions are replaced by built-in |
|
b120cdd30fbc
* Fix bug in tzparse.py for DST timezone
Guido van Rossum <guido@python.org>
parents:
1095
diff
changeset
|
5 # functions imported from built-in module "strop". |
| 5 | 6 |
| 7 # Some strings for ctype-style character classification | |
|
1331
07900834cc97
* pdb.py: set 'privileged' property when evaluating expressions
Guido van Rossum <guido@python.org>
parents:
1291
diff
changeset
|
8 whitespace = ' \t\n\r\v\f' |
| 5 | 9 lowercase = 'abcdefghijklmnopqrstuvwxyz' |
| 10 uppercase = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' | |
| 11 letters = lowercase + uppercase | |
| 12 digits = '0123456789' | |
| 13 hexdigits = digits + 'abcdef' + 'ABCDEF' | |
| 14 octdigits = '01234567' | |
| 15 | |
| 16 # Case conversion helpers | |
|
585
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
17 _idmap = '' |
|
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
18 for i in range(256): _idmap = _idmap + chr(i) |
|
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
19 _lower = _idmap[:ord('A')] + lowercase + _idmap[ord('Z')+1:] |
|
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
20 _upper = _idmap[:ord('a')] + uppercase + _idmap[ord('z')+1:] |
|
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
21 _swapcase = _upper[:ord('A')] + lowercase + _upper[ord('Z')+1:] |
| 5 | 22 del i |
| 23 | |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
24 # Backward compatible names for exceptions |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
25 index_error = ValueError |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
26 atoi_error = ValueError |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
27 atof_error = ValueError |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
28 atol_error = ValueError |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
29 |
| 5 | 30 # convert UPPER CASE letters to lower case |
| 31 def lower(s): | |
| 32 res = '' | |
| 33 for c in s: | |
|
585
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
34 res = res + _lower[ord(c)] |
| 5 | 35 return res |
| 36 | |
| 37 # Convert lower case letters to UPPER CASE | |
| 38 def upper(s): | |
| 39 res = '' | |
| 40 for c in s: | |
|
585
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
41 res = res + _upper[ord(c)] |
| 5 | 42 return res |
| 43 | |
| 44 # Swap lower case letters and UPPER CASE | |
| 45 def swapcase(s): | |
| 46 res = '' | |
| 47 for c in s: | |
|
585
37905fe1892a
New implementation method for case conversion.
Guido van Rossum <guido@python.org>
parents:
559
diff
changeset
|
48 res = res + _swapcase[ord(c)] |
| 5 | 49 return res |
| 50 | |
| 51 # Strip leading and trailing tabs and spaces | |
| 52 def strip(s): | |
| 53 i, j = 0, len(s) | |
| 54 while i < j and s[i] in whitespace: i = i+1 | |
| 55 while i < j and s[j-1] in whitespace: j = j-1 | |
| 56 return s[i:j] | |
| 57 | |
| 58 # Split a string into a list of space/tab-separated words | |
| 59 # NB: split(s) is NOT the same as splitfields(s, ' ')! | |
|
2778
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
60 def split(s, sep=None): |
|
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
61 if sep is not None: return splitfields(s, sep) |
| 5 | 62 res = [] |
| 63 i, n = 0, len(s) | |
| 64 while i < n: | |
| 65 while i < n and s[i] in whitespace: i = i+1 | |
| 559 | 66 if i == n: break |
| 5 | 67 j = i |
| 68 while j < n and s[j] not in whitespace: j = j+1 | |
| 69 res.append(s[i:j]) | |
| 70 i = j | |
| 71 return res | |
| 72 | |
| 73 # Split a list into fields separated by a given string | |
| 74 # NB: splitfields(s, ' ') is NOT the same as split(s)! | |
|
1052
6508ea32c6b0
New module regsub contains sub(), gsub() and split() as in nawk.
Guido van Rossum <guido@python.org>
parents:
980
diff
changeset
|
75 # splitfields(s, '') returns [s] (in analogy with split() in nawk) |
|
2778
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
76 def splitfields(s, sep=None): |
|
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
77 if sep is None: return split(s) |
| 5 | 78 res = [] |
|
980
ffe2fbc583de
splitfields(s, '') is illegal
Guido van Rossum <guido@python.org>
parents:
928
diff
changeset
|
79 nsep = len(sep) |
|
ffe2fbc583de
splitfields(s, '') is illegal
Guido van Rossum <guido@python.org>
parents:
928
diff
changeset
|
80 if nsep == 0: |
|
1052
6508ea32c6b0
New module regsub contains sub(), gsub() and split() as in nawk.
Guido van Rossum <guido@python.org>
parents:
980
diff
changeset
|
81 return [s] |
| 5 | 82 ns = len(s) |
| 83 i = j = 0 | |
| 84 while j+nsep <= ns: | |
| 559 | 85 if s[j:j+nsep] == sep: |
| 5 | 86 res.append(s[i:j]) |
| 87 i = j = j + nsep | |
| 88 else: | |
| 89 j = j + 1 | |
| 90 res.append(s[i:]) | |
| 91 return res | |
| 92 | |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
93 # Join words with spaces between them |
|
2778
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
94 def join(words, sep = ' '): |
|
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
95 return joinfields(words, sep) |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
96 |
|
2778
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
97 # Join fields with optional separator |
|
17fdec2fb309
make split and splitfields, join and joinfields synonyms
Guido van Rossum <guido@python.org>
parents:
2541
diff
changeset
|
98 def joinfields(words, sep = ' '): |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
99 res = '' |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
100 for w in words: |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
101 res = res + (sep + w) |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
102 return res[len(sep):] |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
103 |
|
1291
517d29ebc840
* ftplib.py: added abort() command (sends oob data).
Guido van Rossum <guido@python.org>
parents:
1260
diff
changeset
|
104 # Find substring, raise exception if not found |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
105 def index(s, sub, i = 0): |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
106 res = find(s, sub, i) |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
107 if res < 0: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
108 raise ValueError, 'substring not found in string.index' |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
109 return res |
|
1291
517d29ebc840
* ftplib.py: added abort() command (sends oob data).
Guido van Rossum <guido@python.org>
parents:
1260
diff
changeset
|
110 |
|
1403
6278933d02e3
* string.py: added rindex(), rfind(); changed index() to interpret
Guido van Rossum <guido@python.org>
parents:
1357
diff
changeset
|
111 # Find last substring, raise exception if not found |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
112 def rindex(s, sub, i = 0): |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
113 res = rfind(s, sub, i) |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
114 if res < 0: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
115 raise ValueError, 'substring not found in string.index' |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
116 return res |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
117 |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
118 # Count non-overlapping occurrences of substring |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
119 def count(s, sub, i = 0): |
|
2541
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
120 if i < 0: i = max(0, i + len(s)) |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
121 n = len(sub) |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
122 m = len(s) + 1 - n |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
123 if n == 0: return m-i |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
124 r = 0 |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
125 while i < m: |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
126 if sub == s[i:i+n]: |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
127 r = r+1 |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
128 i = i+n |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
129 else: |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
130 i = i+1 |
|
1403
6278933d02e3
* string.py: added rindex(), rfind(); changed index() to interpret
Guido van Rossum <guido@python.org>
parents:
1357
diff
changeset
|
131 return r |
|
6278933d02e3
* string.py: added rindex(), rfind(); changed index() to interpret
Guido van Rossum <guido@python.org>
parents:
1357
diff
changeset
|
132 |
|
1291
517d29ebc840
* ftplib.py: added abort() command (sends oob data).
Guido van Rossum <guido@python.org>
parents:
1260
diff
changeset
|
133 # Find substring, return -1 if not found |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
134 def find(s, sub, i = 0): |
|
2541
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
135 if i < 0: i = max(0, i + len(s)) |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
136 n = len(sub) |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
137 m = len(s) + 1 - n |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
138 while i < m: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
139 if sub == s[i:i+n]: return i |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
140 i = i+1 |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
141 return -1 |
| 5 | 142 |
|
1403
6278933d02e3
* string.py: added rindex(), rfind(); changed index() to interpret
Guido van Rossum <guido@python.org>
parents:
1357
diff
changeset
|
143 # Find last substring, return -1 if not found |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
144 def rfind(s, sub, i = 0): |
|
2541
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
145 if i < 0: i = max(0, i + len(s)) |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
146 n = len(sub) |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
147 m = len(s) + 1 - n |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
148 r = -1 |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
149 while i < m: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
150 if sub == s[i:i+n]: r = i |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
151 i = i+1 |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
152 return r |
|
1403
6278933d02e3
* string.py: added rindex(), rfind(); changed index() to interpret
Guido van Rossum <guido@python.org>
parents:
1357
diff
changeset
|
153 |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
154 # Convert string to float |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
155 def atof(str): |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
156 import regex |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
157 sign = '' |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
158 s = str |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
159 if s and s[0] in '+-': |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
160 sign = s[0] |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
161 s = s[1:] |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
162 if not s: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
163 raise ValueError, 'non-float argument to string.atof' |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
164 while s[0] == '0' and len(s) > 1 and s[1] in digits: s = s[1:] |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
165 if regex.match('[0-9]*\(\.[0-9]*\)?\([eE][-+]?[0-9]+\)?', s) != len(s): |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
166 raise ValueError, 'non-float argument to string.atof' |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
167 try: |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
168 return float(eval(sign + s)) |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
169 except SyntaxError: |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
170 raise ValueError, 'non-float argument to string.atof' |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
171 |
| 5 | 172 # Convert string to integer |
|
2541
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
173 def atoi(str, base=10): |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
174 if base != 10: |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
175 # We only get here if strop doesn't define atoi() |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
176 raise ValueError, "this string.atoi doesn't support base != 10" |
|
928
8725fa8d7ff9
Removed *.libs (now in ./sgi);
Guido van Rossum <guido@python.org>
parents:
724
diff
changeset
|
177 sign = '' |
| 5 | 178 s = str |
|
1086
db817f3a1c65
* change default line numbers for 'list' in pdb.py
Guido van Rossum <guido@python.org>
parents:
1078
diff
changeset
|
179 if s and s[0] in '+-': |
|
928
8725fa8d7ff9
Removed *.libs (now in ./sgi);
Guido van Rossum <guido@python.org>
parents:
724
diff
changeset
|
180 sign = s[0] |
|
8725fa8d7ff9
Removed *.libs (now in ./sgi);
Guido van Rossum <guido@python.org>
parents:
724
diff
changeset
|
181 s = s[1:] |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
182 if not s: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
183 raise ValueError, 'non-integer argument to string.atoi' |
|
928
8725fa8d7ff9
Removed *.libs (now in ./sgi);
Guido van Rossum <guido@python.org>
parents:
724
diff
changeset
|
184 while s[0] == '0' and len(s) > 1: s = s[1:] |
| 5 | 185 for c in s: |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
186 if c not in digits: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
187 raise ValueError, 'non-integer argument to string.atoi' |
|
928
8725fa8d7ff9
Removed *.libs (now in ./sgi);
Guido van Rossum <guido@python.org>
parents:
724
diff
changeset
|
188 return eval(sign + s) |
| 5 | 189 |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
190 # Convert string to long integer |
|
2541
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
191 def atol(str, base=10): |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
192 if base != 10: |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
193 # We only get here if strop doesn't define atol() |
|
b72ccf5b7dbc
add dummy base to atoi/atol; careful about negative start indices in find/count
Guido van Rossum <guido@python.org>
parents:
1788
diff
changeset
|
194 raise ValueError, "this string.atol doesn't support base != 10" |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
195 sign = '' |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
196 s = str |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
197 if s and s[0] in '+-': |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
198 sign = s[0] |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
199 s = s[1:] |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
200 if not s: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
201 raise ValueError, 'non-integer argument to string.atol' |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
202 while s[0] == '0' and len(s) > 1: s = s[1:] |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
203 for c in s: |
|
1788
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
204 if c not in digits: |
|
56a986e49f56
* Lib/string.py: find/rfind is now the main implementation and
Guido van Rossum <guido@python.org>
parents:
1746
diff
changeset
|
205 raise ValueError, 'non-integer argument to string.atol' |
|
1357
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
206 return eval(sign + s + 'L') |
|
2fac209e1c3f
* profile.py, pdb.py: added help() function
Guido van Rossum <guido@python.org>
parents:
1331
diff
changeset
|
207 |
| 5 | 208 # Left-justify a string |
| 209 def ljust(s, width): | |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
210 n = width - len(s) |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
211 if n <= 0: return s |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
212 return s + ' '*n |
| 5 | 213 |
| 214 # Right-justify a string | |
| 215 def rjust(s, width): | |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
216 n = width - len(s) |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
217 if n <= 0: return s |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
218 return ' '*n + s |
| 5 | 219 |
| 220 # Center a string | |
| 221 def center(s, width): | |
|
196
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
222 n = width - len(s) |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
223 if n <= 0: return s |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
224 half = n/2 |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
225 if n%2 and width%2: |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
226 # This ensures that center(center(s, i), j) = center(s, j) |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
227 half = half+1 |
|
48fc0b8f33d9
Added join() and joinfields() functions.
Guido van Rossum <guido@python.org>
parents:
102
diff
changeset
|
228 return ' '*half + s + ' '*(n-half) |
| 5 | 229 |
| 230 # Zero-fill a number, e.g., (12, 3) --> '012' and (-3, 3) --> '-03' | |
| 231 # Decadent feature: the argument may be a string or a number | |
| 232 # (Use of this is deprecated; it should be a string as with ljust c.s.) | |
| 233 def zfill(x, width): | |
| 559 | 234 if type(x) == type(''): s = x |
| 5 | 235 else: s = `x` |
| 236 n = len(s) | |
| 237 if n >= width: return s | |
| 238 sign = '' | |
| 365 | 239 if s[0] in ('-', '+'): |
| 240 sign, s = s[0], s[1:] | |
| 5 | 241 return sign + '0'*(width-n) + s |
|
724
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
242 |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
243 # Expand tabs in a string. |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
244 # Doesn't take non-printing chars into account, but does understand \n. |
| 2958 | 245 def expandtabs(s, tabsize=8): |
|
724
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
246 res = line = '' |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
247 for c in s: |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
248 if c == '\t': |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
249 c = ' '*(tabsize - len(line)%tabsize) |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
250 line = line + c |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
251 if c == '\n': |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
252 res = res + line |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
253 line = '' |
|
476bb7e5b854
Add function to expand tabs.
Guido van Rossum <guido@python.org>
parents:
585
diff
changeset
|
254 return res + line |
|
1078
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
255 |
|
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
256 |
|
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
257 # Try importing optional built-in module "strop" -- if it exists, |
|
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
258 # it redefines some string operations that are 100-1000 times faster. |
|
1331
07900834cc97
* pdb.py: set 'privileged' property when evaluating expressions
Guido van Rossum <guido@python.org>
parents:
1291
diff
changeset
|
259 # It also defines values for whitespace, lowercase and uppercase |
|
07900834cc97
* pdb.py: set 'privileged' property when evaluating expressions
Guido van Rossum <guido@python.org>
parents:
1291
diff
changeset
|
260 # that match <ctype.h>'s definitions. |
|
1078
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
261 |
|
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
262 try: |
|
245003c006a6
Misc changes and new modules. whrandom is "objectified". SOCKET.py
Guido van Rossum <guido@python.org>
parents:
1052
diff
changeset
|
263 from strop import * |
|
1331
07900834cc97
* pdb.py: set 'privileged' property when evaluating expressions
Guido van Rossum <guido@python.org>
parents:
1291
diff
changeset
|
264 letters = lowercase + uppercase |
|
1746
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
265 except ImportError: |
|
1940892d2fe3
Merge alpha100 branch back to main trunk
Guido van Rossum <guido@python.org>
parents:
1403
diff
changeset
|
266 pass # Use the original, slow versions |