1 USING: help.markup help.syntax math models strings sequences ;
5 { $values { "loc" "a pair of integers" } { "n" integer } { "newloc" "a pair of integers" } }
6 { $description "Adds an integer to the column number of a line/column pair." } ;
8 { +col +line =col =line } related-words
11 { $values { "loc" "a pair of integers" } { "n" integer } { "newloc" "a pair of integers" } }
12 { $description "Adds an integer to the line number of a line/column pair." } ;
15 { $values { "loc" "a pair of integers" } { "n" integer } { "newloc" "a pair of integers" } }
16 { $description "Sets the column number of a line/column pair." } ;
19 { $values { "loc" "a pair of integers" } { "n" integer } { "newloc" "a pair of integers" } }
20 { $description "Sets the line number of a line/column pair." } ;
23 { $values { "loc1" "a pair of integers" } { "loc2" "a pair of integers" } { "?" "a boolean" } }
24 { $description "Tests if both line/column pairs have the same line number." } ;
27 { $class-description "A document is a " { $link model } " containing editable text, stored as an array of lines. Documents are created by calling " { $link <document> } ". Documents can be edited with editor gadgets; see " { $vocab-link "ui.gadgets.editors" } "." } ;
30 { $values { "document" "a new " { $link document } } }
31 { $description "Creates a new, empty " { $link document } "." } ;
34 { $values { "n" "a non-negative integer" } { "document" document } { "string" string } }
35 { $description "Outputs the " { $snippet "n" } "th line of the document." }
36 { $errors "Throws an error if " { $snippet "n" } " is out of bounds." } ;
39 { $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "document" document } { "slice" slice } }
40 { $description "Outputs a range of lines from the document." }
41 { $notes "The range is created by calling " { $link <slice> } "." }
42 { $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." } ;
45 { $values { "from" "a non-negative integer" } { "to" "a non-negative integer" } { "quot" { $quotation "( string -- )" } } }
46 { $description "Applies the quotation to each line in the range." }
47 { $notes "The range is created by calling " { $link <slice> } "." }
48 { $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." } ;
51 { $values { "from" "a pair of integers" } { "to" "a pair of integers" } { "document" document } { "string" "a new " { $link string } } }
52 { $description "Outputs all text in between two line/column number pairs. Lines are separated by " { $snippet "\\n" } "." }
53 { $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." } ;
56 { $values { "string" string } { "from" "a pair of integers" } { "to" "a pair of integers" } { "document" document } }
57 { $description "Replaces all text between two line/column number pairs with " { $snippet "string" } ". The string may use either " { $snippet "\\n" } ", " { $snippet "\\r\\n" } " or " { $snippet "\\r" } " line separators." }
58 { $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." }
59 { $side-effects "document" } ;
61 HELP: remove-doc-range
62 { $values { "from" "a pair of integers" } { "to" "a pair of integers" } { "document" document } }
63 { $description "Removes all text between two line/column number pairs." }
64 { $errors "Throws an error if " { $snippet "from" } " or " { $snippet "to" } " is out of bounds." }
65 { $side-effects "document" } ;
68 { $values { "loc" "a pair of integers" } { "document" document } { "newloc" "a pair of integers" } }
69 { $description "Ensures that the line and column numbers in " { $snippet "loc" } " are valid, clamping them to the permitted range if they are not." } ;
72 { $values { "line#" "a non-negative integer" } { "document" document } { "loc" "a pair of integers" } }
73 { $description "Outputs the location where " { $snippet "line#" } " ends." }
74 { $errors "Throws an error if " { $snippet "line#" } " is out of bounds." } ;
77 { $values { "document" document } { "loc" "a pair of integers" } }
78 { $description "Outputs the location of the end of the document." } ;
81 { $values { "document" document } { "str" "a new " { $link string } } }
82 { $description "Outputs the contents of the document as a string. Lines are separated by " { $snippet "\\n" } "." } ;
85 { $values { "string" string } { "document" document } }
86 { $description "Sets the contents of the document to a string, which may use either " { $snippet "\\n" } ", " { $snippet "\\r\\n" } " or " { $snippet "\\r" } " line separators." }
87 { $side-effects "document" } ;
90 { $values { "document" document } }
91 { $description "Removes all text from the document." }
92 { $side-effects "document" } ;
95 { $values { "loc" "a pair of integers" } { "document" document } { "elt" "an element" } { "newloc" "a pair of integers" } }
96 { $contract "Outputs the location of the first occurrence of the element prior to " { $snippet "loc" } "." } ;
98 { prev-elt next-elt } related-words
101 { $values { "loc" "a pair of integers" } { "document" document } { "elt" "an element" } { "newloc" "a pair of integers" } }
102 { $contract "Outputs the location of the first occurrence of the element following " { $snippet "loc" } "." } ;
105 { $class-description "An element representing a single character." } ;
108 { $class-description "An element representing a single word. The " { $link prev-elt } " and " { $link next-elt } " words return the location of the beginning and the end of the word at the current location." } ;
110 { one-word-elt word-elt } related-words
113 { $class-description "An element representing a single word. The " { $link prev-elt } " and " { $link next-elt } " words return the location of the previous and next word from the current location." } ;
116 { $class-description "An element representing a single line. The " { $link prev-elt } " and " { $link next-elt } " words return the location of the beginning and the end of the line at the current location." } ;
118 { one-line-elt line-elt } related-words
121 { $class-description "An element representing a single line. The " { $link prev-elt } " and " { $link next-elt } " words return the location of the previous and next line from the current location." } ;
124 { $class-description "An element representing the entire document. The " { $link prev-elt } " word outputs the start of the document and the " { $link next-elt } " word outputs the end of the document." } ;
126 ARTICLE: "documents" "Documents"
127 { $subsection document }
128 { $subsection <document> }
129 "Getting and setting the contents of the entire document:"
130 { $subsection doc-string }
131 { $subsection set-doc-string }
132 { $subsection clear-doc }
133 "Getting and setting subranges:"
134 { $subsection doc-line }
135 { $subsection doc-lines }
136 { $subsection doc-range }
137 { $subsection set-doc-range }
138 { $subsection remove-doc-range }
140 { $subsection each-line }
141 { $see-also "gadgets-editors" } ;
143 ARTICLE: "document-locs-elts" "Locations and elements"
144 "Locations in the document are represented as a line/column number pair, with both indices being zero-based. There are some words for manipulating locations:"
146 { $subsection +line }
148 { $subsection =line }
149 "New locations can be created out of existing ones by finding the start or end of a document element nearest to a given location."
150 { $subsection prev-elt }
151 { $subsection next-elt }
152 "The different types of document elements correspond to the standard editing taxonomy:"
153 { $subsection char-elt }
154 { $subsection one-word-elt }
155 { $subsection word-elt }
156 { $subsection one-line-elt }
157 { $subsection line-elt }
158 { $subsection doc-elt }
159 "Miscellaneous words for working with locations:"
160 { $subsection lines-equal? }
161 { $subsection validate-loc } ;