doc-procs.tcl

Documentation procedures for the ArsDigita Templating System

Location:

packages/acs-templating/tcl/doc-procs.tcl

Author:

Karl Goldstein <karlg@arsdigita.com>

CVS Identification:

$Id: doc-procs.tcl,v 1.11.2.1 2021/02/01 10:54:23 gustafn Exp $

Procedures in this file

• template::get_datasources (public)
• template::parse_directives (public)
• template::verify_datasources (public)

Detailed information

 template::get_datasources code

 template::parse_directives code

 template::verify_datasources

Content File Source

ad_library {
    Documentation procedures for the ArsDigita Templating System

    @author Karl Goldstein    (karlg@arsdigita.com)

    @cvs-id $Id: doc-procs.tcl,v 1.11.2.1 2021/02/01 10:54:23 gustafn Exp $
}

# Copyright (C) 1999-2000 ArsDigita Corporation

# This is free software distributed under the terms of the GNU Public
# License.  Full text of the license is available from the GNU Project:
# http://www.fsf.org/copyleft/gpl.html

# Data source comments have the following form:

# @datasource foo multirow
# Output info about a foo.
# @param column name The name of the foo.
# @param id The ID of the foo passed with the request.

namespace eval template {}

d_proc -public template::parse_directives {
    code
} {
    Parse out directives embedded in the code parameter.
} {

    # remove carriage returns if present
    regsub -all -- {\r|\r\n} $code {\n} code

    # remove extra blank lines
    regsub -all -- {(\n)\n} $code {\1} code

    set lines [split $code "\n"]

    # regular expression for match directive comments
    set direxp {^\#[\s]*@([a-zA-Z0-9\-_]+)[\s]+(.*)$}

    set directives [list]

    foreach line $lines {

        if { [regexp $direxp $line x next_directive next_comment] } {

            # start a new directive

            if { [info exists directive] } {

                # finish last directive
                lappend directives [list $directive $comment]
            }

            set directive $next_directive
            set comment $next_comment

        } elseif { [info exists directive] } {

            if { [regexp {^\#\s*(.*)$} $line x add_comment] } {

            # append this line to the current directive
            append comment " $add_comment"

            } else {

                # finish directive
                lappend directives [list $directive $comment]
                unset directive
                unset comment
            }
        }
    }

    if { [info exists directive] } {
        lappend directives [list $directive $comment]
    }

    return $directives
}

ad_proc -public template::get_datasources { code } {
    Assemble directives into data source(s) for presentation.
} {

    upvar datasources:rowcount rowcount
    set rowcount 0

    #for debugging purposes
    upvar output text
    set text [parse_directives $code]

    foreach directive [parse_directives $code] {

        switch -exact [lindex $directive 0] {

            datasource {

                # directive is a new datasource
                set info [lindex $directive 1]
                # Assign the first elements of $info to 'name' and 'structure',
                # and the rest to 'comment'
                set comment [lassign $info name structure]

                if { [string match "one*" $structure] } {

                    # directive is a onevalue or onelist.  add a row and move on
                    incr rowcount
                    upvar datasources:$rowcount datasource

                    set datasource(rownum) $rowcount
                    set datasource(name) $name
                    set datasource(structure) $structure
                    set datasource(comment) $comment
                }
            }

            data_input {
                # directive is a new form
                set info [lindex $directive 1]
                # Assign the first elements of $info to 'name' and 'structure',
                # and the rest to 'comment'
                set comment [lassign $info name structure]
            }

            input {
                set info [lindex $directive 1]
                # Assign the first elements of $info to 'input_name' and
                # 'input_type', and the rest to 'input_comment'
                set input_comment [lassign $info input_name input_type]

                incr rowcount
                upvar datasources:$rowcount datasource

                set datasource(rownum) $rowcount
                set datasource(structure) $structure
                set datasource(comment) $comment
                set datasource(name) $name

                set datasource(input_name) $input_name
                set datasource(input_type) $input_type
                set datasource(input_comment) $input_comment
            }

            column {
                set info [lindex $directive 1]
                # Assign the first element of $info to 'column_name', and the
                # rest to 'column_comment'
                set column_comment [lassign $info column_name]

                incr rowcount
                upvar datasources:$rowcount datasource

                set datasource(rownum) $rowcount
                set datasource(name) $name
                set datasource(structure) $structure
                set datasource(comment) $comment

                set datasource(column_name) $column_name
                set datasource(column_comment) $column_comment
            }
        }
    }
}

ad_proc -public template::verify_datasources {} {
    @return True (1)
} {
    return 1
}


# Local variables:
#    mode: tcl
#    tcl-indent-level: 4
#    indent-tabs-mode: nil
# End: