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authorRob Pike <r@golang.org>2009-05-05 17:05:39 -0700
committerRob Pike <r@golang.org>2009-05-05 17:05:39 -0700
commit9b2c5da922681eb51d4012a59f1c3efab79b4afc (patch)
tree11cfc1b980ecce9cb0eec06f49cc53ce05faf350 /src/lib/strings.go
parentf821e3c7c3a309ebdc1e3dbf4026b41c54e99d28 (diff)
downloadgo-9b2c5da922681eb51d4012a59f1c3efab79b4afc.tar.xz
directory-per-package step 1: move files from lib/X.go to lib/X/X.go
no substantive changes except: - new Makefiles, all auto-generated - go/src/lib/Makefile has been extensively edited R=rsc OCL=28310 CL=28310
Diffstat (limited to 'src/lib/strings.go')
-rw-r--r--src/lib/strings.go119
1 files changed, 0 insertions, 119 deletions
diff --git a/src/lib/strings.go b/src/lib/strings.go
deleted file mode 100644
index 33adab2499..0000000000
--- a/src/lib/strings.go
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// A package of simple functions to manipulate strings.
-package strings
-
-import "utf8"
-
-// Explode splits s into an array of UTF-8 sequences, one per Unicode character (still strings).
-// Invalid UTF-8 sequences become correct encodings of U+FFF8.
-func Explode(s string) []string {
- a := make([]string, utf8.RuneCountInString(s));
- j := 0;
- var size, rune int;
- for i := 0; i < len(a); i++ {
- rune, size = utf8.DecodeRuneInString(s, j);
- a[i] = string(rune);
- j += size;
- }
- return a
-}
-
-// Count counts the number of non-overlapping instances of sep in s.
-func Count(s, sep string) int {
- if sep == "" {
- return utf8.RuneCountInString(s)+1
- }
- c := sep[0];
- n := 0;
- for i := 0; i+len(sep) <= len(s); i++ {
- if s[i] == c && (len(sep) == 1 || s[i:i+len(sep)] == sep) {
- n++;
- i += len(sep)-1
- }
- }
- return n
-}
-
-// Index returns the index of the first instance of sep in s, or -1 if sep is not present in s.
-func Index(s, sep string) int {
- n := len(sep);
- if n == 0 {
- return 0
- }
- c := sep[0];
- for i := 0; i+n <= len(s); i++ {
- if s[i] == c && (n == 1 || s[i:i+n] == sep) {
- return i
- }
- }
- return -1
-}
-
-// Split returns the array representing the substrings of s separated by string sep. Adjacent
-// occurrences of sep produce empty substrings. If sep is empty, it is the same as Explode.
-func Split(s, sep string) []string {
- if sep == "" {
- return Explode(s)
- }
- c := sep[0];
- start := 0;
- n := Count(s, sep)+1;
- a := make([]string, n);
- na := 0;
- for i := 0; i+len(sep) <= len(s); i++ {
- if s[i] == c && (len(sep) == 1 || s[i:i+len(sep)] == sep) {
- a[na] = s[start:i];
- na++;
- start = i+len(sep);
- i += len(sep)-1
- }
- }
- a[na] = s[start:len(s)];
- return a
-}
-
-// Join concatenates the elements of a to create a single string. The separator string
-// sep is placed between elements in the resulting string.
-func Join(a []string, sep string) string {
- if len(a) == 0 {
- return ""
- }
- if len(a) == 1 {
- return a[0]
- }
- n := len(sep) * (len(a)-1);
- for i := 0; i < len(a); i++ {
- n += len(a[i])
- }
-
- b := make([]byte, n);
- bp := 0;
- for i := 0; i < len(a); i++ {
- s := a[i];
- for j := 0; j < len(s); j++ {
- b[bp] = s[j];
- bp++
- }
- if i + 1 < len(a) {
- s = sep;
- for j := 0; j < len(s); j++ {
- b[bp] = s[j];
- bp++
- }
- }
- }
- return string(b)
-}
-
-// HasPrefix tests whether the string s begins with prefix.
-func HasPrefix(s, prefix string) bool {
- return len(s) >= len(prefix) && s[0:len(prefix)] == prefix
-}
-
-// HasSuffix tests whether the string s ends with suffix.
-func HasSuffix(s, suffix string) bool {
- return len(s) >= len(suffix) && s[len(s)-len(suffix):len(s)] == suffix
-}