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(define configf:key-no-val (regexp "^(\\S+)(\\s*)$"))
(define configf:comment-rx (regexp "^\\s*#.*"))
(define configf:cont-ln-rx (regexp "^(\\s+)(\\S+.*)$"))
;; read a line and process any #{ ... } constructs
(define configf:var-expand-regex (regexp "^(.*)#\\{(scheme|system|shell|getenv|get|runconfigs-get|rget)\\s+([^\\}\\{]*)\\}(.*)"))
(define (configf:process-line l ht)
(define (configf:process-line l ht allow-system)
(let loop ((res l))
(if (string? res)
(let ((matchdat (string-search configf:var-expand-regex res)))
(if matchdat
(let* ((prestr (list-ref matchdat 1))
(cmdtype (list-ref matchdat 2)) ;; eval, system, shell, getenv
(cmd (list-ref matchdat 3))
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(sect (car parts))
(var (cadr parts)))
(conc "(lambda (ht)(config-lookup ht \"" sect "\" \"" var "\"))")))
((runconfigs-get) (conc "(lambda (ht)(runconfigs-get ht \"" cmd "\"))"))
((rget) (conc "(lambda (ht)(runconfigs-get ht \"" cmd "\"))"))
(else "(lambda (ht)(print \"ERROR\") \"ERROR\")"))))
;; (print "fullcmd=" fullcmd)
(if (or allow-system
(not (member cmdtype '("system" "shell"))))
(with-input-from-string fullcmd
(lambda ()
(set! result ((eval (read)) ht))))
(loop (conc prestr result poststr)))
(with-input-from-string fullcmd
(lambda ()
(set! result ((eval (read)) ht))))
(set! result (conc "#{(" cmdtype ") " cmd "}"))) (loop (conc prestr result poststr)))
res))
res)))
;; Run a shell command and return the output as a string
(define (shell cmd)
(let* ((output (cmd-run->list cmd))
(res (car output))
(status (cadr output)))
(if (equal? status 0)
(let ((outres (string-intersperse
res
"\n")))
(debug:print-info 4 "shell result:\n" outres)
outres)
(begin
(with-output-to-port (current-error-port)
(lambda ()
(print "ERROR: " cmd " returned bad exit code " status))
(print "ERROR: " cmd " returned bad exit code " status)))
""))))
;; Lookup a value in runconfigs based on -reqtarg or -target
(define (runconfigs-get config var)
(let ((targ (or (args:get-arg "-reqtarg")(args:get-arg "-target"))))
(let ((targ (or (args:get-arg "-reqtarg")(args:get-arg "-target")(getenv "MT_TARGET"))))
(if targ
(or (configf:lookup config targ var)
(configf:lookup config "default" var))
(configf:lookup config "default" var))))
;; this was inline but I'm pretty sure that is a hold over from when it was *very* simple ...
;;
(define-inline (configf:read-line p ht allow-processing)
(define (configf:read-line p ht allow-processing)
(let loop ((inl (read-line p)))
(if (and (string? inl)
(not (string-null? inl))
(equal? "\\" (string-take-right inl 1))) ;; last character is \
(let ((nextl (read-line p)))
(if (not (eof-object? nextl))
(loop (string-append inl nextl))))
(if (and allow-processing
(not (eq? allow-processing 'return-string)))
(configf:process-line inl ht)
inl))))
(let ((cont-line (and (string? inl)
(not (string-null? inl))
(equal? "\\" (string-take-right inl 1)))))
(if cont-line ;; last character is \
(let ((nextl (read-line p)))
(if (not (eof-object? nextl))
(loop (string-append (if cont-line
(string-take inl (- (string-length inl) 1))
inl)
nextl))))
(case allow-processing ;; if (and allow-processing
;; (not (eq? allow-processing 'return-string)))
((#t #f)
(configf:process-line inl ht allow-processing))
((return-string)
inl)
(else
(configf:process-line inl ht allow-processing)))))))
;; read a config file, returns hash table of alists
;; read a config file, returns hash table of alists
;; adds to ht if given (must be #f otherwise)
;; envion-patt is a regex spec that identifies sections that will be eval'd
;; in the environment on the fly
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" output: " cmdres)
(exit 1)))
(if (null? res)
""
(string-intersperse res " "))))))
(hash-table-set! res curr-section-name
(config:assoc-safe-add alist
key
key
(case allow-system
((return-procs) val-proc)
((return-string) cmd)
(else (val-proc)))))
(loop (configf:read-line inp res allow-system) curr-section-name #f #f))
(loop (configf:read-line inp res allow-system) curr-section-name #f #f)))
(configf:key-val-pr ( x key unk1 val unk2 ) (let* ((alist (hash-table-ref/default res curr-section-name '()))
(envar (and environ-patt (string-search (regexp environ-patt) curr-section-name)))
(realval (if envar
(config:eval-string-in-environment val)
val)))
(debug:print-info 6 "read-config env setting, envar: " envar " realval: " realval " val: " val " key: " key " curr-section-name: " curr-section-name)
(if envar
(begin
;; (debug:print-info 4 "read-config key=" key ", val=" val ", realval=" realval)
(setenv key realval)))
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(if match ;; (and match (list? match)(> (length match) 1))
(cadr match)
#f))
))
#f))
(define configf:lookup config-lookup)
(define configf:read-file read-config)
(define (configf:section-vars cfgdat section)
(let ((sectdat (hash-table-ref/default cfgdat section '())))
(if (null? sectdat)
'()
(map car sectdat))))
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(let ((inp (open-input-file fname)))
(let loop ((inl (read-line inp))
(res '()))
(if (eof-object? inl)
(begin
(close-input-port inp)
(reverse res))
(loop (read-line inp)(cons inl)))))
(loop (read-line inp)(cons inl res)))))
'()))
;;======================================================================
;; Write a config
;; 0. Given a refererence data structure "indat"
;; 1. Open the output file and read it into a list
;; 2. Flatten any multiline entries
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(with-output-to-file fname
(lambda ()
(for-each
(lambda (line)
(print line))
(configf:expand-multi-lines fdat))))))
;;======================================================================
;; refdb
;;======================================================================
;; reads a refdb into an assoc array of assoc arrays
;; returns (list dat msg)
(define (configf:read-refdb refdb-path)
(let ((sheets-file (conc refdb-path "/sheet-names.cfg")))
(if (not (file-exists? sheets-file))
(list #f (conc "ERROR: no refdb found at " refdb-path))
(if (not (file-read-access? sheets-file))
(list #f (conc "ERROR: refdb file not readable at " refdb-path))
(let* ((sheets (with-input-from-file sheets-file
(lambda ()
(let loop ((inl (read-line))
(res '()))
(if (eof-object? inl)
(reverse res)
(loop (read-line)(cons inl res)))))))
(data '()))
(for-each
(lambda (sheet-name)
(let* ((dat-path (conc refdb-path "/" sheet-name ".dat"))
(ref-dat (configf:read-file dat-path #f #t))
(ref-assoc (map (lambda (key)
(list key (hash-table-ref ref-dat key)))
(hash-table-keys ref-dat))))
;; (hash-table->alist ref-dat)))
(set! data (append data (list (list sheet-name ref-assoc))))))
sheets)
(list data "NO ERRORS"))))))
;; map over all pairs in a three level hierarchial alist and apply a function to the keys/val
;;
(define (configf:map-all-hier-alist data proc #!key (initproc1 #f)(initproc2 #f)(initproc3 #f))
(for-each
(lambda (sheetname)
(let* ((sheettmp (assoc sheetname data))
(sheetdat (if sheettmp (cadr sheettmp) '())))
(if initproc1 (initproc1 sheetname))
(for-each
(lambda (sectionname)
(let* ((sectiontmp (assoc sectionname sheetdat))
(sectiondat (if sectiontmp (cadr sectiontmp) '())))
(if initproc2 (initproc2 sheetname sectionname))
(for-each
(lambda (varname)
(let* ((valtmp (assoc varname sectiondat))
(val (if valtmp (cadr valtmp) "")))
(proc sheetname sectionname varname val)))
(map car sectiondat))))
(map car sheetdat))))
(map car data)))
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