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;; -*- lexical-binding: t; -*-
;; data conversions
(defun hcel-parse-package-id (package-id &optional divider)
(unless (stringp divider) (setq divider " "))
(string-match (format "^\\(.*\\)%s\\(.*\\)$" divider) package-id)
(list (cons 'name (match-string 1 package-id))
(cons 'version (match-string 2 package-id))))
(defun hcel-location-tag (location-info)
"Gets the tag of LOCATION-INFO."
(alist-get 'tag location-info))
(defun hcel-approx-to-exact-location (approx-location-info)
"Fetch exact location given approximate location.
Example of approximate location:
\"locationInfo\": {
\"componentId\": \"exe-haskell-code-server\",
\"entity\": \"Typ\",
\"haddockAnchorId\": \"PackageInfo\",
\"moduleName\": \"HaskellCodeExplorer.Types\",
\"name\": \"PackageInfo\",
\"packageId\": {
\"name\": \"haskell-code-explorer\",
\"version\": \"0.1.0.0\"
},
\"tag\": \"ApproximateLocation\"
}"
(alist-get 'location
(hcel-definition-site-location-info approx-location-info)))
(defun hcel-id-src-span-to-location-info (package-id module-path id-src-span)
"Converts an idSrcSpan to an exact location.
Example of an idSrcSpan:
\"idSrcSpan\": {
\"endColumn\": 43,
\"line\": 228,
\"modulePath\": \"src/HaskellCodeExplorer/Types.hs\",
\"startColumn\": 26
}
"
(list
(cons 'packageId package-id)
(cons 'modulePath module-path)
(cons 'startLine (alist-get 'line id-src-span))
(cons 'startColumn (alist-get 'startColumn id-src-span))
(cons 'endLine (alist-get 'line id-src-span))
(cons 'endColumn (alist-get 'endColumn id-src-span))
(cons 'tag "ExactLocation")))
(defun hcel-expression (expr)
(when-let* ((span (alist-get 'srcSpan expr))
(line-beg (alist-get 'line (alist-get 'start span)))
(col-beg (alist-get 'column (alist-get 'start span)))
(line-end (alist-get 'line (alist-get 'end span)))
(col-end (alist-get 'column (alist-get 'end span))))
(buffer-substring-line-column line-beg (1- col-beg) line-end (1- col-end))))
;; buffers and strings manipulation
(defun goto-line-column (line column)
(goto-line line)
(move-to-column column))
(defun hcel-unquote-html (html)
(replace-regexp-in-string
"&" "&"
(replace-regexp-in-string
"'" "'"
(replace-regexp-in-string
""" "\""
(replace-regexp-in-string
">" ">"
(replace-regexp-in-string
"<" "<" html))))))
(defun buffer-substring-line-column (line-beg col-beg line-end col-end)
(save-excursion
(buffer-substring
(progn (goto-line-column line-beg col-beg) (point))
(progn (goto-line-column line-end col-end) (point)))))
(defun fontify-with-haskell-mode ()
"Fontify using haskell-mode"
(require 'haskell)
(let ((text (buffer-string)))
(with-temp-buffer
(haskell-mode)
(insert text)
(if (fboundp 'font-lock-ensure)
(font-lock-ensure)
(with-no-warnings (font-lock-fontify-buffer)))
(setq text (buffer-substring (point-min) (point-max))))
(erase-buffer)
(insert text)))
(defun remove-html-markup (html)
(replace-regexp-in-string
"<.*?>" ""
(replace-regexp-in-string "</p>" "\n\n" html)))
(defun fill-string (text)
(with-temp-buffer
(insert text)
(fill-region (point-min) (point-max))
(buffer-substring (point-min) (point-max))))
;; string formatting
(defun hcel-format-package-id (package &optional divider)
(unless (stringp divider) (setq divider " "))
(concat (alist-get 'name package) divider (alist-get 'version package)))
(defun hcel-render-components (components &optional name)
(when (or components name)
(concat (when name (replace-regexp-in-string "\n" " " name))
(when components
(concat (when name " :: ")
(replace-regexp-in-string
"\n" " " (mapconcat
(lambda (component)
(or (alist-get 'name component)
(alist-get 'contents component)))
components
"")))))))
(defun hcel-render-id-type (id-type)
(concat
(hcel-render-components (alist-get 'components id-type))
(when-let ((expanded (hcel-render-components
(alist-get 'componentsExpanded id-type))))
(concat "\nExpands to: " expanded))))
(defun hcel-expression-and-type (expr)
"Returns a pair of expression text and its type text."
(when-let ((expression (hcel-expression expr))
(type (hcel-render-id-type
(alist-get 'exprType (alist-get 'info expr)))))
(cons expression type)))
(provide 'hcel-utils)
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