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Overview
Comment: | better handling of normal datums in @-expressions |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
aaa324e25710e0b33d2c19e6356bda5d |
User & Date: | murphy 2011-10-08 10:01:00.619 |
Context
2011-10-11
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18:02 | added release information check-in: fe963ce8a9 user: murphy tags: trunk, v1.0.0 | |
2011-10-08
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10:01 | better handling of normal datums in @-expressions check-in: aaa324e257 user: murphy tags: trunk | |
2011-10-07
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19:41 | @-expression support, distribution of code over several files check-in: a62acea00c user: murphy tags: trunk | |
Changes
Changes to webgate-utils.scm.
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83 84 85 86 87 88 89 | (error 'read-netstring "client side protocol error: malformed netstring (bad terminal)")) s))) ;;; @-expressions | | | > | > | > | < > | > > > > | | | 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 | (error 'read-netstring "client side protocol error: malformed netstring (bad terminal)")) s))) ;;; @-expressions (define (make-at-reader+table args) (letrec ((command-char (get-keyword #:command-char args (constantly #\@))) (trim-whitespace? (get-keyword #:trim-whitespace? args (constantly #t))) (condense-whitespace? (get-keyword #:condense-whitespace? args (constantly #t))) (list-arguments? (get-keyword #:list-arguments? args (constantly #f))) (char-normal? (cute char-set-contains? (char-set-complement (char-set command-char #\{ #\} #\return #\newline)) <>)) (char-group? (cute char-set-contains? (char-set #\[ #\{) <>)) (skip-whitespace (lambda (port) (when (char-whitespace? (peek-char port)) (read-char port) (skip-whitespace port)))) (read-whitespace (if condense-whitespace? (lambda (port) (skip-whitespace port) " ") (cut read-token char-whitespace? <>))) (read-datum (lambda (port) (parameterize ((current-read-table datum-read-table)) (read port)))) (read-at-exp (lambda (port) (skip-whitespace port) (let ((char (peek-char port))) (cond ((eof-object? char) (read-char port)) (else (when (eqv? char command-char) (read-char port)) (let* ((head (and (not (char-group? (peek-char port))) (read-datum port))) (args (and (eqv? (peek-char port) #\[) (read-datum port))) (body (and (eqv? (peek-char port) #\{) (read-inside-at-exp 'skip port)))) (if (or args body) (append! (cond (head => list) (else '())) |
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190 191 192 193 194 195 196 | ((char-whitespace? char) (let* ((head (read-whitespace port)) (tail (more))) (if (or (pair? tail) (not trim-whitespace?)) (cons head tail) tail))) (else | | > > > > > > > > > > > > > > > > | | | | | > | < < < | | | | | | | 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 | ((char-whitespace? char) (let* ((head (read-whitespace port)) (tail (more))) (if (or (pair? tail) (not trim-whitespace?)) (cons head tail) tail))) (else (cons (read-token char-normal? port) (more))))))))) (read-table (get-keyword #:read-table args current-read-table)) (at-read-table (parameterize ((current-read-table (copy-read-table read-table))) (set-read-syntax! command-char read-at-exp) (current-read-table))) (datum-read-table (let ((spec (get-keyword #:datum-read-table args (constantly #t)))) (cond ((procedure? spec) (spec at-read-table)) (spec at-read-table) (else read-table))))) (values (if (get-keyword #:inside? args) (lambda (#!optional (port (current-input-port))) (read-inside-at-exp 'none port)) (lambda (#!optional (port (current-input-port))) (read-at-exp port))) at-read-table))) (define (make-at-reader . args) (nth-value 0 (make-at-reader+table args))) (define (make-at-read-table . args) (nth-value 1 (make-at-reader+table args))) (define (use-at-read-table . args) (current-read-table (nth-value 1 (make-at-reader+table args)))) ;;; URI encoding (define uri-encode (let ((problematic-rx (irregex '(~ (or alphanumeric "!#$&'()*,-./:;?@_~"))))) (lambda (s) |
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