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comparison core/src/luan/modules/StringLuan.java @ 248:10cc873babee

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fix StringIndexOutOfBoundsException git-svn-id: https://luan-java.googlecode.com/svn/trunk@249 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 16 Oct 2014 04:04:52 +0000
parents 58752e3e4c5c
children 705d14f4d8ee
comparison
equal deleted inserted replaced
247:b5995d77878a 248:10cc873babee
60 } 60 }
61 return null; 61 return null;
62 } 62 }
63 63
64 static int start(String s,int i) { 64 static int start(String s,int i) {
65 return i==0 ? 0 : i > 0 ? i - 1 : s.length() + i; 65 int len = s.length();
66 return i==0 ? 0 : i > 0 ? Math.min(i-1,len) : Math.max(len+i,0);
66 } 67 }
67 68
68 static int start(String s,Integer i,int dflt) { 69 static int start(String s,Integer i,int dflt) {
69 return i==null ? dflt : start(s,i); 70 return i==null ? dflt : start(s,i);
70 } 71 }
71 72
72 static int end(String s,int i) { 73 static int end(String s,int i) {
73 return i==0 ? 0 : i > 0 ? i : s.length() + i + 1; 74 int len = s.length();
75 return i==0 ? 0 : i > 0 ? Math.min(i,len) : Math.max(len+i+1,0);
74 } 76 }
75 77
76 static int end(String s,Integer i,int dflt) { 78 static int end(String s,Integer i,int dflt) {
77 return i==null ? dflt : end(s,i); 79 return i==null ? dflt : end(s,i);
78 } 80 }