/usr/share/tcltk/tcllib1.17/json/jsonc.tcl is in tcllib 1.17-dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | # jsonc.tcl --
#
# Implementation of a JSON parser in C.
# Binding to a yacc/bison parser by Mikhail.
#
# Copyright (c) 2013 - critcl wrapper - Andreas Kupries <andreas_kupries@users.sourceforge.net>
# Copyright (c) 2013 - C binding - mi+tcl.tk-2013@aldan.algebra.com
package require critcl
# @sak notprovided jsonc
package provide jsonc 1.1.1
package require Tcl 8.4
#critcl::cheaders -g
#critcl::debug memory symbols
critcl::cheaders -Ic c/*.h
critcl::csources c/*.c
# # ## ### Import base declarations, forwards ### ## # #
critcl::ccode {
#include <json_y.h>
}
# # ## ### Main Conversion ### ## # #
namespace eval ::json {
critcl::ccommand json2dict_critcl {dummy I objc objv} {
struct context context = { NULL };
if (objc != 2) {
Tcl_WrongNumArgs(I, 1, objv, "json");
return TCL_ERROR;
}
context.text = Tcl_GetStringFromObj(objv[1], &context.remaining);
context.I = I;
context.has_error = 0;
context.result = TCL_ERROR;
jsonparse (&context);
return context.result;
}
# Issue with critcl 2 used here. Cannot use '-', incomplete distinction of C and Tcl names.
# The json.tcl file making use of this code has a wrapper fixing the issue.
critcl::ccommand many_json2dict_critcl {dummy I objc objv} {
struct context context = { NULL };
int max;
int found;
Tcl_Obj* result = Tcl_NewListObj (0, NULL);
if ((objc < 2) || (objc > 3)) {
Tcl_WrongNumArgs(I, 1, objv, "jsonText ?max?");
return TCL_ERROR;
}
if (objc == 3) {
if (Tcl_GetIntFromObj(I, objv[2], &max) != TCL_OK) {
return TCL_ERROR;
}
if (max <= 0) {
Tcl_AppendResult (I, "Bad limit ",
Tcl_GetString (objv[2]),
" of json entities to extract.",
NULL);
Tcl_SetErrorCode (I, "JSON", "BAD-LIMIT", NULL);
return TCL_ERROR;
}
} else {
max = -1;
}
context.text = Tcl_GetStringFromObj(objv[1], &context.remaining);
context.I = I;
context.has_error = 0;
found = 0;
/* Iterate over the input until
* - we have gotten all requested values.
* - we have run out of input
* - we have run into an error
*/
while ((max < 0) || max) {
context.result = TCL_ERROR;
jsonparse (&context);
/* parse error, abort */
if (context.result != TCL_OK) {
Tcl_DecrRefCount (result);
return TCL_ERROR;
}
/* Proper value extracted, extend result */
found ++;
Tcl_ListObjAppendElement(I, result,
Tcl_GetObjResult (I));
/* Count down on the number of still missing
* values, if not asking for all (-1)
*/
if (max > 0) max --;
/* Jump over trailing whitespace for proper end-detection */
jsonskip (&context);
/* Abort if we have consumed all input */
if (!context.remaining) break;
/* Clear scratch pad before continuing */
context.obj = NULL;
}
/* While all parses were ok we reached end of
* input without getting all requested values,
* this is an error
*/
if (max > 0) {
char buf [30];
sprintf (buf, "%d", found);
Tcl_ResetResult (I);
Tcl_AppendResult (I, "Bad limit ",
Tcl_GetString (objv[2]),
" of json entities to extract, found only ",
buf,
".",
NULL);
Tcl_SetErrorCode (I, "JSON", "BAD-LIMIT", "TOO", "LARGE", NULL);
Tcl_DecrRefCount (result);
return TCL_ERROR;
}
/* We are good and done */
Tcl_SetObjResult(I, result);
return TCL_OK;
}
if 0 {critcl::ccommand validate_critcl {dummy I objc objv} {
struct context context = { NULL };
if (objc != 2) {
Tcl_WrongNumArgs(I, 1, objv, "jsonText");
return TCL_ERROR;
}
context.text = Tcl_GetStringFromObj(objv[1], &context.remaining);
context.I = I;
context.result = TCL_ERROR;
/* Iterate over the input until we have run
* out of text, or encountered an error. We
* use only the lexer here, and told it to not
* create superfluous token values.
*/
while (context.remaining) {
if (jsonlex (&context) == -1) {
Tcl_SetObjResult(I, Tcl_NewBooleanObj (0));
return TCL_OK;
}
}
/* We are good and done */
Tcl_SetObjResult(I, Tcl_NewBooleanObj (1));
return TCL_OK;
}}
}
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