forked from hummypkg/webif
29 lines
855 B
Plaintext
29 lines
855 B
Plaintext
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if {![exists -proc ::json::escape]} {
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# Initialise a map from control characters to JSON escaped characters.
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# Initially all non-null control characters to \u00xx sequences.
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for {set i 1} {$i < 32} {incr i} {
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set ::json::escape_map([format %c $i]) \\u[format %04x $i]
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}
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# Then overwrite certain well known control characters with shorter
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# versions.
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set ::json::escape_map([format %c 8]) \\b; # backspace
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set ::json::escape_map([format %c 9]) \\t; # tab
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set ::json::escape_map([format %c 10]) \\n; # lf
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set ::json::escape_map([format %c 12]) \\f; # ff
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set ::json::escape_map([format %c 13]) \\r; # cr
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# Other special sequences
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set ::json::escape_map(\") {\"}
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set ::json::escape_map(\\) {\\}
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set ::json::escape_map(/) {\/}
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proc ::json::escape {in} {
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return [string map $::json::escape_map $in]
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}
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alias jescape ::json::escape
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}
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