735 lines
20 KiB
Scheme
735 lines
20 KiB
Scheme
;; Structures and interfaces for surflets.
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;;; Copyright 2002, 2003 Andreas Bernauer
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;;; Copyright 2002 Martin Gasbichler
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;;; NOTE: SSAX/lib/packages.scm must be loaded before you can use this
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;;; downloadable from
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;;; http://sourceforge.net/project/showfiles.php?group_id=30687 (take
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;;; the r5rs compliant version (ssax-sr5rs-plt200-4.9.tar.gz); and
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;;; patch string->goodhtml in packages.scm to string->goodHTML)
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;;; Interfaces
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;; Surflet Handler
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(define-interface surflet-handler-interface
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(export surflet-handler))
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;; Responses from SUrflets
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(define-interface surflet-handler/responses-interface
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(export make-surflet-response
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valid-surflet-response-data?
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surflet-response?
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surflet-response-status
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surflet-response-content-type
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surflet-response-headers
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surflet-response-data))
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;; SUrflet-requests as expected from the surflet handler
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(define-interface surflet-handler/requests-interface
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(export make-surflet-request ;FIXME? unusable for user
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surflet-request?
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surflet-request-request
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surflet-request-input-port
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surflet-request-method
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surflet-request-uri
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surflet-request-url
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surflet-request-version
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surflet-request-headers
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surflet-request-socket))
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(define-interface surflets/error-interface
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(export send-error ;send error response
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(status-code :syntax))) ;from httpd-responses
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;; Use for SUrflets
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(define-interface surflet-handler/primitives-interface
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(compound-interface
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surflet-handler/responses-interface
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surflet-handler/requests-interface
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surflets/error-interface
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(export send/suspend ;send and suspend
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send/finish ;send and finish
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send ;just send (no finish, no suspend)
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)))
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;; Send HTML-Strings (for advanced user)
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(define-interface surflets/send-html-string-interface
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(export send-html-string/suspend
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send-html-string/finish
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send-html-string))
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;; Extensions/Exports to/from Olegs SSAX library
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(define-interface surflets/sxml-interface
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(export display-low-level-sxml
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sxml->low-level-sxml ;direct map to pre-post-order
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sxml->string
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sxml->string/internal
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sxml-attribute?
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sxml-attribute-attributes
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default-rule
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text-rule
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attribute-rule))
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;; SUrflets' extensions to SXML
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(define-interface surflets/surflet-sxml-interface
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(export surflet-sxml->low-level-sxml
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surflet-sxml-rules
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surflet-form-rule
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default-rules
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plain-html-rule
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nbsp-rule
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url-rule))
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;; Use for advanced users: make your own conversion rules.
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(define-interface surflets/my-sxml-interface
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(compound-interface
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surflets/send-html-string-interface
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surflets/sxml-interface
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surflets/surflet-sxml-interface))
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(define-interface surflets/continuations-interface
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(export get-continuations
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delete-continuation!
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continuation-id))
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;; Access to session-id and continuation-id
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(define-interface surflets/ids-interface
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(export my-session-id
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my-continuation-id
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my-ids
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instance-session-id))
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(define-interface surflets/session-data-interface
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(export get-session-data
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set-session-data!))
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;; Use for advanced users: access to your sessions and continuations
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;; (currently you get access to all sessions; this should and will be
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;; restricted in the future)
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(define-interface surflets/my-sessions-interface
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(compound-interface
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surflets/ids-interface
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surflets/continuations-interface
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surflets/session-data-interface
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(export get-session
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;; That would be too much:
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;; get-sessions
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delete-session!
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instance-session-id
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session-adjust-timeout!
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adjust-timeout!
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session-alive?
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session-surflet-name
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session-session-id
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set-session-lifetime!
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options-surflet-path
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options-session-lifetime
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options-cache-surflets?
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options-make-session-timeout-text)))
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(define-interface surflets/sessions-interface
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(compound-interface
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surflets/session-data-interface
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(export get-session
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get-sessions
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delete-session!
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instance-session-id
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set-session-lifetime!
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adjust-timeout!
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session-adjust-timeout!
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session-alive?
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session-surflet-name
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session-session-id ;faked
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;; FIXME: This is too much and should be restricted:
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session-continuation-table
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session-continuation-table-lock
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session-continuation-counter)))
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(define-interface surflet-handler/surflets-interface
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(export get-loaded-surflets
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unload-surflet))
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(define-interface surflet-handler/options-interface
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(export make-surflet-options
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with-surflet-path
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with-session-lifetime
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with-cache-surflets?
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with-make-session-timeout-text
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options-surflet-path
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options-session-lifetime
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options-cache-surflets?
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options-make-session-timeout-text
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set-options-surflet-path!
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set-options-session-lifetime!
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set-options-cache-surflets?!
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set-options-make-session-timeout-text))
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(define-interface surflet-handler/resume-url-interface
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(export resume-url?
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resume-url-ids
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resume-url-session-id
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resume-url-continuation-id))
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;; Use for adminstration of the Surflet Handler
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(define-interface surflet-handler/admin-interface
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(compound-interface
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surflet-handler/surflets-interface
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surflets/sessions-interface
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surflets/continuations-interface
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surflet-handler/resume-url-interface
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surflet-handler/options-interface
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))
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;; THE interface that SUrflets use.
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(define-interface surflet-interface
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(export main)) ; MAIN gets one parameter, the REQUEST
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;; Simple Surflet API as known from PLT
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(define-interface simple-surflet-api-interface
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(export single-query
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queries
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form-query
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inform
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final-page
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make-password
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make-number
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make-boolean
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make-radio
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make-yes-no
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extract/single
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extract))
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;; shift-reset
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(define-interface shift-reset-interface
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(export (reset :syntax)
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(shift :syntax)))
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;; For memory profiling
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(define-interface profiling-interface
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(export profile-space
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profile-result
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profile-results
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write-gnuplot-data-file
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space-info-pair space-info-symbol
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space-info-vector space-info-closure
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space-info-location space-info-cell
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space-info-channel space-info-port
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space-info-ratnum space-info-record
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space-info-continuation space-info-extended-number
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space-info-template space-info-weak-pointer
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space-info-shared-binding space-info-unused-d-header1
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space-info-unused-d-header2 space-info-string
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space-info-byte-vector space-info-double
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space-info-bignum space-info-total
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set-space-info-pair! set-space-info-symbol!
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set-space-info-vector! set-space-info-closure!
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set-space-info-location! set-space-info-cell!
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set-space-info-channel! set-space-info-port!
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set-space-info-ratnum! set-space-info-record!
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set-space-info-continuation! set-space-info-extended-number!
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set-space-info-template! set-space-info-weak-pointer!
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set-space-info-shared-binding! set-space-info-unused-d-header1!
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set-space-info-unused-d-header2! set-space-info-string!
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set-space-info-byte-vector! set-space-info-double!
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set-space-info-bignum! set-space-info-total!
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pure-count pure-bytes
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impure-count impure-bytes
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total-count total-bytes
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))
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;; Handling every condition
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(define-interface handle-fatal-interface
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(export with-fatal-handler*
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(with-fatal-handler :syntax)))
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;; Thread-safe counter
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(define-interface thread-safe-counter-interface
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(export make-thread-safe-counter
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thread-safe-counter-value
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thread-safe-counter-next!
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thread-safe-counter?))
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;; These two are from Martin Gasbichler:
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(define-interface rt-module-language-interface
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(export ((lambda-interface
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with-names-from-rt-structure)
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:syntax)
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reify-structure
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load-structure
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load-config-file
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rt-structure-binding))
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(define-interface rt-modules-interface
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(export interface-value-names
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reify-structure
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load-config-file
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rt-structure-binding
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load-structure))
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(define-interface with-locks-interface
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(export with-lock*
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(with-lock :syntax)))
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;; Input-fields as Scheme-Objects
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(define-interface surflets/input-field-value-interface
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(export input-field?
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raw-input-field-value
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input-field-value
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input-field-binding))
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;; For advanced users: creating your own input-fields
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(define-interface surflets/my-input-fields-interface
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(compound-interface
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surflets/input-field-value-interface
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(export generate-input-field-name
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make-input-field
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make-multi-input-field
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input-field-name
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input-field-type
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input-field-transformer
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input-field-attributes
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input-field-html-tree-maker
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input-field-html-tree
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input-field-multi?
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set-input-field-attributes!
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touch-input-field!)))
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;; For internal use: special exports to create
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;; SXL-rules for input-fields
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(define-interface surflets/internal-input-fields-interface
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(export *input-field-trigger*
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make-sxml-input-field))
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(define-interface surflets/surflet-input-fields-interface
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(compound-interface
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surflets/input-field-value-interface
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(export make-text-field
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set-text-field-value!
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make-number-field
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set-number-field-value!
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make-hidden-field
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set-hidden-field-value!
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make-password-field
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set-password-field-value!
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make-textarea
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set-textarea-value!
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make-select
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make-annotated-select
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make-simple-select-option
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make-annotated-select-option
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select-option?
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select-select-option!
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unselect-select-option!
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add-select-option!
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delete-select-option!
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set-select-option-selected?!
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make-radio-group
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make-annotated-radio-group
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make-radios
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check-radio!
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uncheck-radio!
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set-radio-checked?!
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make-checkbox
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make-annotated-checkbox
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check-checkbox!
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uncheck-checkbox!
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set-checkbox-checked?!
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make-submit-button
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make-reset-button
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make-image-button)))
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;; Some utilities
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(define-interface surflets/utilities-interface
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(export form-query-list
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rev-append
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generate-unique-number
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generate-unique-name
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identity))
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;; Intelligent Addresses
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(define-interface surflets/addresses-interface
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(export make-address
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make-annotated-address
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address-name
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address-annotated?
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; address-add-annotation!
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address-annotation))
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(define-interface surflets/callbacks-interface
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(export make-callback
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make-annotated-callback
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callback-function))
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;; Returned-via (dispatcher for input-fields and intelligent
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;; addresses)
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(define-interface surflets/returned-via-interface
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(export returned-via
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returned-via?
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(case-returned-via :syntax)))
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;; Outdater denies access to outdated object
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(define-interface surflets/outdaters-interface
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(export make-outdater
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(if-outdated :syntax)
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show-outdated))
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;; Access to form bindings in URL
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(define-interface surflets/bindings-interface
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(export get-bindings
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get-content-length
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extract-bindings
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extract-single-binding))
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;; HTML-Extensions to send/suspend et al. (for basic user)
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(define-interface surflets/send-html-interface
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(export send-html/suspend
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send-html/finish
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send-html))
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;; Helping functions for surflets (for basic user)
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(define-interface surflets-interface
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(compound-interface
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; surflet-handler/surflets-interface;
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; surflets/sxml-interface
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; surflets/surflet-sxml-interface
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surflets/send-html-interface
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surflets/surflet-input-fields-interface
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surflets/addresses-interface
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surflets/returned-via-interface
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surflets/bindings-interface
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surflets/session-data-interface))
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;;; Structures
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;; structures from SUrflet Handler
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(define-structures
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((surflet-handler surflet-handler-interface)
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(surflet-handler/surflets surflet-handler/surflets-interface)
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(surflet-handler/options surflet-handler/options-interface)
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(surflet-handler/resume-url surflet-handler/resume-url-interface)
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(surflet-handler/admin surflet-handler/admin-interface)
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(surflet-handler/primitives surflet-handler/primitives-interface)
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(surflets/sessions surflets/sessions-interface)
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(surflets/continuations surflets/continuations-interface)
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(surflets/error surflets/error-interface)
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(surflets/session-data surflets/session-data-interface))
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(open define-record-types ;DEFINE-RECORD-TYPE
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handle-fatal ;WITH-FATAL-ERROR-HANDLER* et al.
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handle-fatal-error
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httpd-errors ;errors for httpd
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httpd-logging ;HTTP-SYSLOG
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httpd-requests ;requests from httpd
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httpd-responses ;replies for httpd
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let-opt ;:OPTIONAL
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locks ;MAKE-LOCK et al.
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profiling ;PROFILE-SPACE
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rt-module-language ;get structures dynamically
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scheme-with-scsh ;regexp et al.
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search-trees
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shift-reset ;SHIFT and RESET
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(subset srfi-1 (alist-cons alist-delete!))
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srfi-6 ;string-ports
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srfi-14 ;CHAR-SET:DIGIT
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srfi-27 ;random numbers
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surflet-requests ;requests for surflets
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surflet-responses ;responses from surflets
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sxml-to-html ;SXML->HTML
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tables ;HASH-TABLES
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thread-cells ;THREAD-CELL et al.
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thread-fluids ;FORK-THREAD
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thread-safe-counter
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threads ;SLEEP
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uri ;URI-PATH-LIST->PATH
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with-locks ;WITH-LOCK
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)
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(files surflet-handler))
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;; SUrflets library of helping functions
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(define-structure surflets surflets-interface
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(open surflets/session-data
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surflets/send-html ;send-html/suspend...
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surflets/surflet-input-fields
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surflets/addresses ;annotated-address...
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surflets/returned-via
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surflets/bindings))
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;; SUrflets library for advanced users: make and use your own
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;; conversion rules.
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(define-structure surflets/my-sxml surflets/my-sxml-interface
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(open surflets/send-html-string
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surflets/sxml
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surflets/surflet-sxml))
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;; SUrflets librarary for advanced users: access to session and
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;; continuations and stuff.
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(define-structure surflets/my-sessions surflets/my-sessions-interface
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(open surflets/ids
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surflets/continuations
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surflets/session-data
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surflet-handler/surflets
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surflets/sessions
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surflet-handler/options))
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;; Shift-Reset
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(define-structure shift-reset shift-reset-interface
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(open scheme
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signals
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escapes
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thread-cells)
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(files shift-reset))
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;; Measuring memory usage.
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(define-structure profiling profiling-interface
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(open let-opt
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define-record-types
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spatial
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srfi-13
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srfi-1
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locks
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scheme-with-scsh)
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(files profile))
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;; Simple Surflet API as known from PLT.
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(define-structure simple-surflet-api simple-surflet-api-interface
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(open scheme-with-scsh
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define-record-types
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let-opt
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surflets
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surflets/surflet-input-fields
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(subset srfi-1 (zip filter find make-list))
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handle-fatal-error
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)
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(files simple-surflet-api))
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;; Handling every condition
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(define-structure handle-fatal handle-fatal-interface
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(open scheme conditions handle)
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(files handle-fatal))
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;; Thread-safe counter
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(define-structure thread-safe-counter thread-safe-counter-interface
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(open scheme
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locks
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define-record-types)
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(files thread-safe-counter))
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;; SUrflet-requests as expected from the SUrflet handler
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;;; We have two names for the same thing to ease the use of structure
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;;; names: requests seem to be part of the surflet-handler, but are
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;;; actually seperate files. If you know everything about SUrflets,
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;;; you use `surflet-requests'.
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(define-structures
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((surflet-handler/requests surflet-handler/requests-interface)
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(surflet-requests surflet-handler/requests-interface))
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(open scheme
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define-record-types
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httpd-requests)
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(files surflet-request))
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(define-structures
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((surflet-handler/responses surflet-handler/responses-interface)
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(surflet-responses surflet-handler/responses-interface))
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(open scheme-with-scsh
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define-record-types)
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(files surflet-response))
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;; Extensions to Olegs SSAX library
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(define-structure surflets/sxml surflets/sxml-interface
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(open scheme-with-scsh ;string-ports
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(subset sxml-to-html (string->goodHTML entag))
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(subset sxml-tree-trans (pre-post-order)))
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(files sxml))
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;; Input fields as Scheme objects
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(define-structures
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((surflets/input-field-value surflets/input-field-value-interface)
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(surflets/my-input-fields surflets/my-input-fields-interface)
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(surflets/internal-input-fields surflets/internal-input-fields-interface))
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(open scheme-with-scsh ;error, format
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(subset let-opt (:optional))
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handle-fatal-error
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define-record-types
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surflets/sxml
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surflets/utilities
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|
)
|
|
(files input-fields))
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|
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(define-structure surlfets/input-fields surflets/my-input-fields)
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|
|
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(define-structure surflets/surflet-input-fields
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surflets/surflet-input-fields-interface
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(open scheme-with-scsh ;error, format
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|
;; avoid name collision for member
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|
(modify srfi-1 (rename (member member/srfi-1)))
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|
define-record-types
|
|
let-opt
|
|
surflets/my-input-fields
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surflets/utilities ;generate-unique-number
|
|
surflets/sxml
|
|
tables ;make-integer-table
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|
)
|
|
(files surflet-input-fields))
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|
|
|
|
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;; Extensions to SXML for surflets
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|
(define-structure surflets/surflet-sxml surflets/surflet-sxml-interface
|
|
(open scheme-with-scsh ;error,receive
|
|
(subset surflets/my-input-fields (input-field-html-tree))
|
|
(subset surflets/internal-input-fields
|
|
(*input-field-trigger*
|
|
make-sxml-input-field))
|
|
surflets/utilities
|
|
(subset srfi-1 (make-list))
|
|
surflets/sxml)
|
|
(files surflet-sxml))
|
|
|
|
|
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;; Access to session-id and continuation-id
|
|
(define-structure surflets/ids surflets/ids-interface
|
|
(open scheme
|
|
(subset surflet-requests (surflet-request-url))
|
|
(subset srfi-1 (last))
|
|
(subset surflet-handler/admin
|
|
(instance-session-id
|
|
resume-url-session-id
|
|
resume-url-continuation-id
|
|
resume-url-ids))
|
|
(subset url (http-url-path)))
|
|
(files ids))
|
|
|
|
|
|
;; Some utilities
|
|
(define-structure surflets/utilities surflets/utilities-interface
|
|
(open scheme
|
|
parse-html-forms)
|
|
(files utilities))
|
|
|
|
|
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;; Intelligent Addresses
|
|
(define-structure surflets/addresses surflets/addresses-interface
|
|
(open scheme
|
|
srfi-23 ;error
|
|
(subset uri (escape-uri))
|
|
define-record-types
|
|
(subset surflets/utilities (generate-unique-name)))
|
|
(files addresses))
|
|
|
|
(define-structure surflets/callbacks surflets/callbacks-interface
|
|
(open scheme
|
|
srfi-23 ;error
|
|
surflets/addresses
|
|
(subset surflet-handler/primitives (send/suspend))
|
|
surflets/bindings
|
|
surflets/returned-via)
|
|
(files callbacks))
|
|
|
|
(define-structure surflets/returned-via surflets/returned-via-interface
|
|
(open scheme
|
|
surflets/input-field-value
|
|
surflets/addresses
|
|
(subset uri (unescape-uri)))
|
|
(files returned-via))
|
|
|
|
(define-structure surflets/outdaters surflets/outdaters-interface
|
|
(open scheme
|
|
define-record-types
|
|
surflets/send-html)
|
|
(files outdater))
|
|
|
|
(define-structure surflets/bindings surflets/bindings-interface
|
|
(open scheme-with-scsh ;read-string,error
|
|
locks
|
|
weak ;weak pointers
|
|
surflets/utilities ;form-query-list
|
|
surflet-requests
|
|
(subset url (http-url-search))
|
|
(subset srfi-14 (char-set:digit))
|
|
(subset srfi-13 (string-index string-trim))
|
|
(subset srfi-1 (filter))
|
|
(subset sunet-utilities (get-header)))
|
|
(files bindings))
|
|
|
|
(define-structures
|
|
((surflets/send-html surflets/send-html-interface)
|
|
(surflets/send-html-string surflets/send-html-string-interface))
|
|
(open scheme
|
|
surflet-handler/primitives
|
|
surflets/sxml
|
|
surflets/surflet-sxml)
|
|
(files send-html))
|
|
|
|
;; These two are from Martin Gasbichler:
|
|
(define-structure rt-module-language rt-module-language-interface
|
|
(open scheme
|
|
rt-modules)
|
|
(for-syntax (open scheme
|
|
rt-modules))
|
|
(begin
|
|
(define-syntax lambda-interface
|
|
(lambda (expr rename compare)
|
|
(let ((%lambda (rename 'lambda))
|
|
(interface-name (cadr expr))
|
|
(body (cddr expr)))
|
|
`(,%lambda ,(interface-value-names interface-name) ,@body))))
|
|
|
|
;(with-names-from-rt-structure surflet surflet-interface (main))
|
|
(define-syntax with-names-from-rt-structure
|
|
(lambda (expr rename compare)
|
|
(let ((%lambda (rename 'lambda))
|
|
(%let (rename 'let))
|
|
(%rt-structure-value (rename 'rt-structure-value))
|
|
(%rt-structure-binding (rename 'rt-structure-binding))
|
|
(rt-structure (cadr expr))
|
|
(interface-name (caddr expr))
|
|
(body (cdddr expr)))
|
|
(let ((ivn (interface-value-names interface-name)))
|
|
`(,%let ((,%rt-structure-value ,rt-structure))
|
|
((,%lambda ,ivn ,@body)
|
|
,@(map (lambda (name)
|
|
`(,%rt-structure-binding ,%rt-structure-value ',name))
|
|
ivn)))))))))
|
|
|
|
(define-structure rt-modules rt-modules-interface
|
|
(open scheme
|
|
meta-types ; syntax-type
|
|
interfaces ; for-each-declaration
|
|
define-record-types
|
|
records
|
|
signals
|
|
bindings
|
|
packages
|
|
packages-internal
|
|
locations
|
|
environments
|
|
ensures-loaded
|
|
package-commands-internal)
|
|
(files rt-module))
|
|
|
|
(define-structure with-locks with-locks-interface
|
|
(open scheme
|
|
locks)
|
|
(files with-locks))
|
|
|
|
;;; EOF
|
|
;;; Local Variables:
|
|
;;; buffer-tag-table: "../../../TAGS"
|
|
;;; End::
|