'\" '\" Generated from file 'json_write\&.man' by tcllib/doctools with format 'nroff' '\" Copyright (c) 2009-2013,2022 Andreas Kupries '\" .TH "json::write" n 1\&.0\&.4 tcllib "JSON" .\" The -*- nroff -*- definitions below are for supplemental macros used .\" in Tcl/Tk manual entries. .\" .\" .AP type name in/out ?indent? .\" Start paragraph describing an argument to a library procedure. .\" type is type of argument (int, etc.), in/out is either "in", "out", .\" or "in/out" to describe whether procedure reads or modifies arg, .\" and indent is equivalent to second arg of .IP (shouldn't ever be .\" needed; use .AS below instead) .\" .\" .AS ?type? ?name? .\" Give maximum sizes of arguments for setting tab stops. Type and .\" name are examples of largest possible arguments that will be passed .\" to .AP later. If args are omitted, default tab stops are used. .\" .\" .BS .\" Start box enclosure. From here until next .BE, everything will be .\" enclosed in one large box. .\" .\" .BE .\" End of box enclosure. .\" .\" .CS .\" Begin code excerpt. .\" .\" .CE .\" End code excerpt. .\" .\" .VS ?version? ?br? .\" Begin vertical sidebar, for use in marking newly-changed parts .\" of man pages. The first argument is ignored and used for recording .\" the version when the .VS was added, so that the sidebars can be .\" found and removed when they reach a certain age. If another argument .\" is present, then a line break is forced before starting the sidebar. .\" .\" .VE .\" End of vertical sidebar. .\" .\" .DS .\" Begin an indented unfilled display. .\" .\" .DE .\" End of indented unfilled display. .\" .\" .SO ?manpage? .\" Start of list of standard options for a Tk widget. The manpage .\" argument defines where to look up the standard options; if .\" omitted, defaults to "options". The options follow on successive .\" lines, in three columns separated by tabs. .\" .\" .SE .\" End of list of standard options for a Tk widget. .\" .\" .OP cmdName dbName dbClass .\" Start of description of a specific option. cmdName gives the .\" option's name as specified in the class command, dbName gives .\" the option's name in the option database, and dbClass gives .\" the option's class in the option database. .\" .\" .UL arg1 arg2 .\" Print arg1 underlined, then print arg2 normally. .\" .\" .QW arg1 ?arg2? .\" Print arg1 in quotes, then arg2 normally (for trailing punctuation). .\" .\" .PQ arg1 ?arg2? .\" Print an open parenthesis, arg1 in quotes, then arg2 normally .\" (for trailing punctuation) and then a closing parenthesis. .\" .\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages. .if t .wh -1.3i ^B .nr ^l \n(.l .ad b .\" # Start an argument description .de AP .ie !"\\$4"" .TP \\$4 .el \{\ . ie !"\\$2"" .TP \\n()Cu . el .TP 15 .\} .ta \\n()Au \\n()Bu .ie !"\\$3"" \{\ \&\\$1 \\fI\\$2\\fP (\\$3) .\".b .\} .el \{\ .br .ie !"\\$2"" \{\ \&\\$1 \\fI\\$2\\fP .\} .el \{\ \&\\fI\\$1\\fP .\} .\} .. .\" # define tabbing values for .AP .de AS .nr )A 10n .if !"\\$1"" .nr )A \\w'\\$1'u+3n .nr )B \\n()Au+15n .\" .if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n .nr )C \\n()Bu+\\w'(in/out)'u+2n .. .AS Tcl_Interp Tcl_CreateInterp in/out .\" # BS - start boxed text .\" # ^y = starting y location .\" # ^b = 1 .de BS .br .mk ^y .nr ^b 1u .if n .nf .if n .ti 0 .if n \l'\\n(.lu\(ul' .if n .fi .. .\" # BE - end boxed text (draw box now) .de BE .nf .ti 0 .mk ^t .ie n \l'\\n(^lu\(ul' .el \{\ .\" Draw four-sided box normally, but don't draw top of .\" box if the box started on an earlier page. .ie !\\n(^b-1 \{\ \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' .\} .el \}\ \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul' .\} .\} .fi .br .nr ^b 0 .. .\" # VS - start vertical sidebar .\" # ^Y = starting y location .\" # ^v = 1 (for troff; for nroff this doesn't matter) .de VS .if !"\\$2"" .br .mk ^Y .ie n 'mc \s12\(br\s0 .el .nr ^v 1u .. .\" # VE - end of vertical sidebar .de VE .ie n 'mc .el \{\ .ev 2 .nf .ti 0 .mk ^t \h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n' .sp -1 .fi .ev .\} .nr ^v 0 .. .\" # Special macro to handle page bottom: finish off current .\" # box/sidebar if in box/sidebar mode, then invoked standard .\" # page bottom macro. .de ^B .ev 2 'ti 0 'nf .mk ^t .if \\n(^b \{\ .\" Draw three-sided box if this is the box's first page, .\" draw two sides but no top otherwise. .ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c .el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c .\} .if \\n(^v \{\ .nr ^x \\n(^tu+1v-\\n(^Yu \kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c .\} .bp 'fi .ev .if \\n(^b \{\ .mk ^y .nr ^b 2 .\} .if \\n(^v \{\ .mk ^Y .\} .. .\" # DS - begin display .de DS .RS .nf .sp .. .\" # DE - end display .de DE .fi .RE .sp .. .\" # SO - start of list of standard options .de SO 'ie '\\$1'' .ds So \\fBoptions\\fR 'el .ds So \\fB\\$1\\fR .SH "STANDARD OPTIONS" .LP .nf .ta 5.5c 11c .ft B .. .\" # SE - end of list of standard options .de SE .fi .ft R .LP See the \\*(So manual entry for details on the standard options. .. .\" # OP - start of full description for a single option .de OP .LP .nf .ta 4c Command-Line Name: \\fB\\$1\\fR Database Name: \\fB\\$2\\fR Database Class: \\fB\\$3\\fR .fi .IP .. .\" # CS - begin code excerpt .de CS .RS .nf .ta .25i .5i .75i 1i .. .\" # CE - end code excerpt .de CE .fi .RE .. .\" # UL - underline word .de UL \\$1\l'|0\(ul'\\$2 .. .\" # QW - apply quotation marks to word .de QW .ie '\\*(lq'"' ``\\$1''\\$2 .\"" fix emacs highlighting .el \\*(lq\\$1\\*(rq\\$2 .. .\" # PQ - apply parens and quotation marks to word .de PQ .ie '\\*(lq'"' (``\\$1''\\$2)\\$3 .\"" fix emacs highlighting .el (\\*(lq\\$1\\*(rq\\$2)\\$3 .. .\" # QR - quoted range .de QR .ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3 .\"" fix emacs highlighting .el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3 .. .\" # MT - "empty" string .de MT .QW "" .. .BS .SH NAME json::write \- JSON generation .SH SYNOPSIS package require \fBTcl 8\&.5\fR .sp package require \fBjson::write ?1\&.0\&.4?\fR .sp \fB::json::write\fR \fBindented\fR .sp \fB::json::write\fR \fBindented\fR \fIflag\fR .sp \fB::json::write\fR \fBaligned\fR .sp \fB::json::write\fR \fBaligned\fR \fIflag\fR .sp \fB::json::write\fR \fBstring\fR \fIs\fR .sp \fB::json::write\fR \fBarray\fR \fIarg\fR\&.\&.\&. .sp \fB::json::write\fR \fBarray-strings\fR \fIarg\fR\&.\&.\&. .sp \fB::json::write\fR \fBobject\fR \fIkey\fR \fIvalue\fR\&.\&.\&. .sp \fB::json::write\fR \fBobject-strings\fR \fIkey\fR \fIvalue\fR\&.\&.\&. .sp .BE .SH DESCRIPTION .PP The \fBjson::write\fR package provides a simple Tcl-only library for generation of text in the JSON \fIhttp://www\&.json\&.org/\fR data exchange format as specified in RFC 4627 \fIhttp://www\&.ietf\&.org/rfc/rfc4627\&.txt\fR\&. .SH COMMANDS .TP \fB::json::write\fR \fBindented\fR This method returns the current state of the indentation setting\&. .TP \fB::json::write\fR \fBindented\fR \fIflag\fR This and the method \fBaligned\fR configure the layout of the JSON generated by the package\&. .sp If this \fIflag\fR is set (default) the package will break the generated JSON code across lines and indent it according to its inner structure, with each key of an object on a separate line\&. .sp If this flag is not set, the whole JSON object will be written on a single line, with minimum spacing between all elements\&. .TP \fB::json::write\fR \fBaligned\fR This method returns the current state of the alignment setting\&. .TP \fB::json::write\fR \fBaligned\fR \fIflag\fR This and the method \fBindented\fR configure the layout of the JSON generated by the package\&. .sp If this \fIflag\fR is set (default) the package ensures that the values for the keys in an object are vertically aligned with each other, for a nice table effect\&. To make this work this also implies that \fBindented\fR is set as well\&. .sp If this flag is not set, the output is formatted as per the value of \fBindented\fR, without trying to align the values for object keys\&. .TP \fB::json::write\fR \fBstring\fR \fIs\fR This method takes the string \fIs\fR and returns it properly quoted for JSON as its result\&. .TP \fB::json::write\fR \fBarray\fR \fIarg\fR\&.\&.\&. This method takes a series of JSON formatted arguments and returns them as a properly formatted JSON array as its result\&. .TP \fB::json::write\fR \fBarray-strings\fR \fIarg\fR\&.\&.\&. This is a convenience variant of \fBarray\fR\&. It assumes that all arguments are plain strings and formats them as JSON strings before passing them into the \fBarray\fR\&. .TP \fB::json::write\fR \fBobject\fR \fIkey\fR \fIvalue\fR\&.\&.\&. This method takes a series of key/value arguments, the values already formatted for JSON, and returns them as a properly formatted JSON object as its result, with the keys formatted as JSON strings\&. .TP \fB::json::write\fR \fBobject-strings\fR \fIkey\fR \fIvalue\fR\&.\&.\&. This is a convenience variant of \fBobject\fR\&. It assumes that all \fIvalue\fR arguments are plain strings and formats them as JSON strings before passing them into the \fBobject\fR\&. .PP .PP .SH RELATED To parse json, instead of writing it, see package \fBjson\fR\&. .SH "BUGS, IDEAS, FEEDBACK" This document, and the package it describes, will undoubtedly contain bugs and other problems\&. Please report such in the category \fIjson\fR of the \fITcllib Trackers\fR [http://core\&.tcl\&.tk/tcllib/reportlist]\&. Please also report any ideas for enhancements you may have for either package and/or documentation\&. .PP When proposing code changes, please provide \fIunified diffs\fR, i\&.e the output of \fBdiff -u\fR\&. .PP Note further that \fIattachments\fR are strongly preferred over inlined patches\&. Attachments can be made by going to the \fBEdit\fR form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar\&. .SH KEYWORDS data exchange, exchange format, javascript, json .SH CATEGORY CGI programming .SH COPYRIGHT .nf Copyright (c) 2009-2013,2022 Andreas Kupries .fi