119 lines
4.1 KiB
EmacsLisp
119 lines
4.1 KiB
EmacsLisp
;;; orgtbl-sqlinsert.el --- orgtbl to SQL insert statements.
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;; Copyright (C) 2008-2013 Free Software Foundation
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;; Author: Jason Riedy <jason@acm.org>
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;; Keywords: org, tables, sql
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;; This file is not part of GNU Emacs.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Converts an orgtbl to a sequence of SQL insertion commands.
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;; Table cells are quoted and escaped very conservatively.
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;;; Code:
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(defun orgtbl-to-sqlinsert (table params)
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"Convert the orgtbl-mode TABLE to SQL insert statements.
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TABLE is a list, each entry either the symbol `hline' for a horizontal
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separator line, or a list of fields for that line.
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PARAMS is a property list of parameters that can influence the conversion.
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Names and strings are modified slightly by default. Single-ticks
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are doubled as per SQL's standard mechanism. Backslashes and
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dollar signs are deleted. And tildes are changed to spaces.
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These modifications were chosed for use with TeX. See
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ORGTBL-SQL-STRIP-AND-QUOTE.
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Supports all parameters from ORGTBL-TO-GENERIC. New to this function
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are:
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:sqlname The name of the database table; defaults to the name of the
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target region.
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:nowebname If not nil, used as a wrapping noweb fragment name.
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The most important parameters of ORGTBL-TO-GENERIC for SQL are:
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:splice When set to t, return only insert statements, don't wrap
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them in a transaction. Default is nil.
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:tstart, :tend
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The strings used to begin and commit the transaction.
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:hfmt A function that gathers the quoted header names into a
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dynamically scoped variable HDRLIST. Probably should
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not be changed by the user.
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The general parameters :skip and :skipcols have already been applied when
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this function is called."
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(let* (hdrlist
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(alignment (mapconcat (lambda (x) (if x "r" "l"))
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org-table-last-alignment ""))
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(nowebname (plist-get params :nowebname))
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(breakvals (plist-get params :breakvals))
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(firstheader t)
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(*orgtbl-default-fmt* 'orgtbl-sql-strip-and-quote)
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(params2
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(list
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:sqlname name
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:tstart (lambda () (concat (if nowebname
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(format "<<%s>>= \n" nowebname)
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"")
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"BEGIN TRANSACTION;"))
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:tend (lambda () (concat "COMMIT;" (if nowebname "\n@ " "")))
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:hfmt (lambda (f) (progn (if firstheader (push f hdrlist)) ""))
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:hlfmt (lambda (lst) (setq firstheader nil))
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:lstart (lambda () (concat "INSERT INTO "
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sqlname "( "
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(mapconcat 'identity (reverse hdrlist)
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", ")
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" )" (if breakvals "\n" " ")
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"VALUES ( "))
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:lend " );"
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:sep " , "
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:hline nil
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:remove-nil-lines t))
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(params (org-combine-plists params2 params))
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(sqlname (plist-get params :sqlname)))
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(orgtbl-to-generic table params)))
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(defun orgtbl-sql-quote (str)
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"Convert single ticks to doubled single ticks and wrap in single ticks."
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(concat "'" (mapconcat 'identity (split-string str "'") "''") "'"))
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(defun orgtbl-sql-strip-dollars-escapes-tildes (str)
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"Strip dollarsigns and backslash escapes, replace tildes with spaces."
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(mapconcat 'identity
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(split-string (mapconcat 'identity
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(split-string str "\\$\\|\\\\")
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"")
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"~")
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" "))
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(defun orgtbl-sql-strip-and-quote (str)
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"Apply ORGBTL-SQL-QUOTE and ORGTBL-SQL-STRIP-DOLLARS-ESCAPES-TILDES
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to sanitize STR for use in SQL statements."
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(cond ((stringp str)
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(orgtbl-sql-quote (orgtbl-sql-strip-dollars-escapes-tildes str)))
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((sequencep str) (mapcar 'orgtbl-sql-strip-and-quote str))
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(t nil)))
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(provide 'orgtbl-sqlinsert)
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;;; orgtbl-sqlinsert.el ends here
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