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go/usr/gri/gosrc/utils.go
Robert Griesemer 7a799be49a - switch to new export syntax
- deprecate old syntax in this front-end (use -6g for compatibility)

R=r
OCL=13831
CL=13833
2008-08-04 15:37:47 -07:00

40 lines
765 B
Go

// 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.
package Utils
export func BaseName(s string) string {
// TODO this is not correct for non-ASCII strings!
i := len(s) - 1;
for i >= 0 && s[i] != '/' {
if s[i] > 128 {
panic "non-ASCII string"
}
i--;
}
return s[i + 1 : len(s)];
}
export func FixExt(s string) string {
i := len(s) - 3; // 3 == len(".go");
if i >= 0 && s[i : len(s)] == ".go" {
s = s[0 : i];
}
return s + ".7";
}
export func GetEnv(key string) string {
n := len(key);
for i := 0; i < sys.envc(); i++ {
v := sys.envv(i);
if v[0 : n] == key {
return v[n + 1 : len(v)]; // +1: skip "="
}
}
return "";
}