Mercurial Hosting > luan
annotate src/goodjava/json/JsonToString.java @ 1752:b4fa42c1e999
minor
author | Franklin Schmidt <fschmidt@gmail.com> |
---|---|
date | Wed, 25 Jan 2023 12:22:09 -0700 |
parents | 99a8ac891914 |
children |
rev | line source |
---|---|
1402
27efb1fcbcb5
move luan.lib to goodjava
Franklin Schmidt <fschmidt@gmail.com>
parents:
1307
diff
changeset
|
1 package goodjava.json; |
720 | 2 |
3 import java.util.List; | |
4 import java.util.Map; | |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
5 import java.util.Iterator; |
720 | 6 |
7 | |
1419
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
8 public final class JsonToString { |
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
9 public boolean compressed = false; |
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
10 |
1113 | 11 public static final class JsonException extends RuntimeException { |
12 private JsonException(String msg) { | |
13 super(msg); | |
14 } | |
15 } | |
16 | |
1419
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
17 public String toString(Object obj) throws JsonException { |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
18 StringBuilder sb = new StringBuilder(); |
1419
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
19 toString(obj,sb,0); |
1132
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
20 return sb.toString(); |
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
21 } |
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
22 |
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
23 private void toString(Object obj,StringBuilder sb,int indented) throws JsonException { |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
24 if( obj == null || obj instanceof Boolean || obj instanceof Number ) { |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
25 sb.append(obj); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
26 return; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
27 } |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
28 if( obj instanceof String ) { |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
29 toString((String)obj,sb); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
30 return; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
31 } |
1113 | 32 if( obj instanceof List ) { |
1117
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
33 toString((List)obj,sb,indented); |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
34 return; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
35 } |
1113 | 36 if( obj instanceof Map ) { |
1117
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
37 toString((Map)obj,sb,indented); |
1113 | 38 return; |
39 } | |
40 throw new JsonException("can't handle type "+obj.getClass().getName()); | |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
41 } |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
42 |
1295 | 43 private static void toString(final String s,StringBuilder sb) { |
44 sb.append('"'); | |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
45 for( int i=0; i<s.length(); i++ ) { |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
46 char c = s.charAt(i); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
47 switch(c) { |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
48 case '"': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
49 sb.append("\\\""); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
50 break; |
1307 | 51 case '\\': |
52 sb.append("\\\\"); | |
53 break; | |
54 case '\b': | |
55 sb.append("\\b"); | |
56 break; | |
57 case '\f': | |
58 sb.append("\\f"); | |
59 break; | |
60 case '\n': | |
61 sb.append("\\n"); | |
62 break; | |
63 case '\r': | |
64 sb.append("\\r"); | |
65 break; | |
66 case '\t': | |
67 sb.append("\\t"); | |
68 break; | |
69 default: | |
70 sb.append(c); | |
71 } | |
72 } | |
73 sb.append('"'); | |
74 } | |
75 | |
76 public static String javascriptEncode(String s) { | |
77 StringBuilder sb = new StringBuilder(); | |
78 for( int i=0; i<s.length(); i++ ) { | |
79 char c = s.charAt(i); | |
80 switch(c) { | |
81 case '"': | |
82 sb.append("\\\""); | |
83 break; | |
84 case '\'': // added for javascript | |
1295 | 85 sb.append("\\'"); |
86 break; | |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
87 case '\\': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
88 sb.append("\\\\"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
89 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
90 case '\b': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
91 sb.append("\\b"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
92 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
93 case '\f': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
94 sb.append("\\f"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
95 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
96 case '\n': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
97 sb.append("\\n"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
98 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
99 case '\r': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
100 sb.append("\\r"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
101 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
102 case '\t': |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
103 sb.append("\\t"); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
104 break; |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
105 default: |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
106 sb.append(c); |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
107 } |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
108 } |
1307 | 109 return sb.toString(); |
758
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
110 } |
c29d11d675fd
added Json.toString() and rpc now sends tables as json
Franklin Schmidt <fschmidt@gmail.com>
parents:
720
diff
changeset
|
111 |
1132
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
112 private void toString(List list,StringBuilder sb,int indented) { |
1116 | 113 sb.append('['); |
114 if( !list.isEmpty() ) { | |
115 indent(sb,indented+1); | |
116 toString(list.get(0),sb,indented+1); | |
1485 | 117 final int n = list.size(); |
118 for( int i=1; i<n; i++ ) { | |
1518
f989778ca9e1
stringify, json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1485
diff
changeset
|
119 sb.append(','); |
f989778ca9e1
stringify, json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1485
diff
changeset
|
120 indent(sb,indented+1); |
1116 | 121 toString(list.get(i),sb,indented+1); |
122 } | |
123 indent(sb,indented); | |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
124 } |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
125 sb.append(']'); |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
126 return; |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
127 } |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
128 |
1132
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
129 private void toString(Map map,StringBuilder sb,int indented) throws JsonException { |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
130 sb.append('{'); |
1116 | 131 if( !map.isEmpty() ) { |
132 Iterator<Map.Entry> i = map.entrySet().iterator(); | |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
133 indent(sb,indented+1); |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
134 toString(i.next(),sb,indented+1); |
1116 | 135 while( i.hasNext() ) { |
136 sb.append(','); | |
137 indent(sb,indented+1); | |
138 toString(i.next(),sb,indented+1); | |
139 } | |
140 indent(sb,indented); | |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
141 } |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
142 sb.append('}'); |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
143 } |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
144 |
1132
b70102bab110
add json_compressed_string()
Franklin Schmidt <fschmidt@gmail.com>
parents:
1117
diff
changeset
|
145 private void toString(Map.Entry entry,StringBuilder sb,int indented) throws JsonException { |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
146 Object key = entry.getKey(); |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
147 if( !(key instanceof String) ) |
1477 | 148 throw new JsonException("table keys must be strings but got "+key.getClass().getSimpleName()+" ("+key+"="+entry.getValue()+")"); |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
149 toString((String)key,sb); |
1518
f989778ca9e1
stringify, json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1485
diff
changeset
|
150 sb.append( compressed ? ":" : ": " ); |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
151 toString(entry.getValue(),sb,indented); |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
152 } |
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
153 |
1419
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
154 private void indent(StringBuilder sb,int indented) { |
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
155 if( compressed ) |
59fd2e8b1b9d
stringify and json_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1402
diff
changeset
|
156 return; |
1117
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
157 sb.append('\n'); |
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
158 for( int i=0; i<indented; i++ ) { |
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
159 sb.append('\t'); |
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
160 } |
9a1aa6fc0b4e
remove json_pretty_string and make json_string somewhat pretty
Franklin Schmidt <fschmidt@gmail.com>
parents:
1116
diff
changeset
|
161 } |
1115
809d74db1415
add json_pretty_string
Franklin Schmidt <fschmidt@gmail.com>
parents:
1113
diff
changeset
|
162 |
720 | 163 } |