package json // Reference: https://github.com/freddierice/php_source/blob/467ed5d6edff72219afd3e644516f131118ef48e/ext/json/JSON_parser.c // Copyright (c) 2005 JSON.org // Go implementation is taken from: https://github.com/spyzhov/ajson/blob/master/internal/state.go type ( States int8 // possible states of the parser Classes int8 // JSON string character types ) const __ = -1 // enum classes const ( C_SPACE Classes = iota /* space */ C_WHITE /* other whitespace */ C_LCURB /* { */ C_RCURB /* } */ C_LSQRB /* [ */ C_RSQRB /* ] */ C_COLON /* : */ C_COMMA /* , */ C_QUOTE /* " */ C_BACKS /* \ */ C_SLASH /* / */ C_PLUS /* + */ C_MINUS /* - */ C_POINT /* . */ C_ZERO /* 0 */ C_DIGIT /* 123456789 */ C_LOW_A /* a */ C_LOW_B /* b */ C_LOW_C /* c */ C_LOW_D /* d */ C_LOW_E /* e */ C_LOW_F /* f */ C_LOW_L /* l */ C_LOW_N /* n */ C_LOW_R /* r */ C_LOW_S /* s */ C_LOW_T /* t */ C_LOW_U /* u */ C_ABCDF /* ABCDF */ C_E /* E */ C_ETC /* everything else */ ) // AsciiClasses array maps the 128 ASCII characters into character classes. var AsciiClasses = [128]Classes{ /* This array maps the 128 ASCII characters into character classes. The remaining Unicode characters should be mapped to C_ETC. Non-whitespace control characters are errors. */ __, __, __, __, __, __, __, __, __, C_WHITE, C_WHITE, __, __, C_WHITE, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, C_SPACE, C_ETC, C_QUOTE, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_PLUS, C_COMMA, C_MINUS, C_POINT, C_SLASH, C_ZERO, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_COLON, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ABCDF, C_ABCDF, C_ABCDF, C_ABCDF, C_E, C_ABCDF, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LSQRB, C_BACKS, C_RSQRB, C_ETC, C_ETC, C_ETC, C_LOW_A, C_LOW_B, C_LOW_C, C_LOW_D, C_LOW_E, C_LOW_F, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LOW_L, C_ETC, C_LOW_N, C_ETC, C_ETC, C_ETC, C_LOW_R, C_LOW_S, C_LOW_T, C_LOW_U, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LCURB, C_ETC, C_RCURB, C_ETC, C_ETC, } // QuoteAsciiClasses is a HACK for single quote from AsciiClasses var QuoteAsciiClasses = [128]Classes{ /* This array maps the 128 ASCII characters into character classes. The remaining Unicode characters should be mapped to C_ETC. Non-whitespace control characters are errors. */ __, __, __, __, __, __, __, __, __, C_WHITE, C_WHITE, __, __, C_WHITE, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, C_SPACE, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_QUOTE, C_ETC, C_ETC, C_ETC, C_PLUS, C_COMMA, C_MINUS, C_POINT, C_SLASH, C_ZERO, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_DIGIT, C_COLON, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ABCDF, C_ABCDF, C_ABCDF, C_ABCDF, C_E, C_ABCDF, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LSQRB, C_BACKS, C_RSQRB, C_ETC, C_ETC, C_ETC, C_LOW_A, C_LOW_B, C_LOW_C, C_LOW_D, C_LOW_E, C_LOW_F, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LOW_L, C_ETC, C_LOW_N, C_ETC, C_ETC, C_ETC, C_LOW_R, C_LOW_S, C_LOW_T, C_LOW_U, C_ETC, C_ETC, C_ETC, C_ETC, C_ETC, C_LCURB, C_ETC, C_RCURB, C_ETC, C_ETC, } /* The state codes. */ const ( GO States = iota /* start */ OK /* ok */ OB /* object */ KE /* key */ CO /* colon */ VA /* value */ AR /* array */ ST /* string */ ES /* escape */ U1 /* u1 */ U2 /* u2 */ U3 /* u3 */ U4 /* u4 */ MI /* minus */ ZE /* zero */ IN /* integer */ DT /* dot */ FR /* fraction */ E1 /* e */ E2 /* ex */ E3 /* exp */ T1 /* tr */ T2 /* tru */ T3 /* true */ F1 /* fa */ F2 /* fal */ F3 /* fals */ F4 /* false */ N1 /* nu */ N2 /* nul */ N3 /* null */ ) // List of action codes. // these constants are defining an action that should be performed under certain conditions. const ( cl States = -2 /* colon */ cm States = -3 /* comma */ qt States = -4 /* quote */ bo States = -5 /* bracket open */ co States = -6 /* curly bracket open */ bc States = -7 /* bracket close */ cc States = -8 /* curly bracket close */ ec States = -9 /* curly bracket empty */ ) // StateTransitionTable is the state transition table takes the current state and the current symbol, and returns either // a new state or an action. An action is represented as a negative number. A JSON text is accepted if at the end of the // text the state is OK and if the mode is DONE. var StateTransitionTable = [31][31]States{ /* The state transition table takes the current state and the current symbol, and returns either a new state or an action. An action is represented as a negative number. A JSON text is accepted if at the end of the text the state is OK and if the mode is DONE. white 1-9 ABCDF etc space | { } [ ] : , " \ / + - . 0 | a b c d e f l n r s t u | E |*/ /*start GO*/ {GO, GO, co, __, bo, __, __, __, ST, __, __, __, MI, __, ZE, IN, __, __, __, __, __, F1, __, N1, __, __, T1, __, __, __, __}, /*ok OK*/ {OK, OK, __, cc, __, bc, __, cm, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*object OB*/ {OB, OB, __, ec, __, __, __, __, ST, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*key KE*/ {KE, KE, __, __, __, __, __, __, ST, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*colon CO*/ {CO, CO, __, __, __, __, cl, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*value VA*/ {VA, VA, co, __, bo, __, __, __, ST, __, __, __, MI, __, ZE, IN, __, __, __, __, __, F1, __, N1, __, __, T1, __, __, __, __}, /*array AR*/ {AR, AR, co, __, bo, bc, __, __, ST, __, __, __, MI, __, ZE, IN, __, __, __, __, __, F1, __, N1, __, __, T1, __, __, __, __}, /*string ST*/ {ST, __, ST, ST, ST, ST, ST, ST, qt, ES, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST, ST}, /*escape ES*/ {__, __, __, __, __, __, __, __, ST, ST, ST, __, __, __, __, __, __, ST, __, __, __, ST, __, ST, ST, __, ST, U1, __, __, __}, /*u1 U1*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, U2, U2, U2, U2, U2, U2, U2, U2, __, __, __, __, __, __, U2, U2, __}, /*u2 U2*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, U3, U3, U3, U3, U3, U3, U3, U3, __, __, __, __, __, __, U3, U3, __}, /*u3 U3*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, U4, U4, U4, U4, U4, U4, U4, U4, __, __, __, __, __, __, U4, U4, __}, /*u4 U4*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, ST, ST, ST, ST, ST, ST, ST, ST, __, __, __, __, __, __, ST, ST, __}, /*minus MI*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, ZE, IN, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*zero ZE*/ {OK, OK, __, cc, __, bc, __, cm, __, __, __, __, __, DT, __, __, __, __, __, __, E1, __, __, __, __, __, __, __, __, E1, __}, /*int IN*/ {OK, OK, __, cc, __, bc, __, cm, __, __, __, __, __, DT, IN, IN, __, __, __, __, E1, __, __, __, __, __, __, __, __, E1, __}, /*dot DT*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, FR, FR, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*frac FR*/ {OK, OK, __, cc, __, bc, __, cm, __, __, __, __, __, __, FR, FR, __, __, __, __, E1, __, __, __, __, __, __, __, __, E1, __}, /*e E1*/ {__, __, __, __, __, __, __, __, __, __, __, E2, E2, __, E3, E3, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*ex E2*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, E3, E3, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*exp E3*/ {OK, OK, __, cc, __, bc, __, cm, __, __, __, __, __, __, E3, E3, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*tr T1*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, T2, __, __, __, __, __, __}, /*tru T2*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, T3, __, __, __}, /*true T3*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, OK, __, __, __, __, __, __, __, __, __, __}, /*fa F1*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, F2, __, __, __, __, __, __, __, __, __, __, __, __, __, __}, /*fal F2*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, F3, __, __, __, __, __, __, __, __}, /*fals F3*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, F4, __, __, __, __, __}, /*false F4*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, OK, __, __, __, __, __, __, __, __, __, __}, /*nu N1*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, N2, __, __, __}, /*nul N2*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, N3, __, __, __, __, __, __, __, __}, /*null N3*/ {__, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, __, OK, __, __, __, __, __, __, __, __}, }