Fix: Copy macro peg-parse-string from peg-tests.el

Unfortunately, the macro was moved from peg.el to peg-tests.el in
later versions of peg, so we copy it for our use here.

Fixes #75.  Thanks to Karl Voit (@novoid) and @karlicoss for
reporting.

Released as 0.4.6.

README.org

@@ -398,6 +398,11 @@ Expands into a call to ~org-ql-select~ with the same arguments.  For convenience
 
 /Note:/ Breaking changes may be made before version 1.0, but in the event of major changes, attempts at backward compatibility will be made with obsolescence declarations, translation of arguments, etc.  Users who need stability guarantees before 1.0 may choose to use tagged stable releases.
 
+** 0.4.6
+
+*Fixed*
++  Compatibility with newer versions of the =peg= library, which removed a macro used by this package.  (Fixes [[https://github.com/alphapapa/org-ql/issues/75][#75]].  Thanks to [[https://github.com/novoid][Karl Voit]] and [[https://github.com/karlicoss][@karlicoss]] for reporting.)
+
 ** 0.4.5
 
 *Fixed*

org-ql.el

@@ -2,7 +2,7 @@
 
 ;; Author: Adam Porter <adam@alphapapa.net>
 ;; Url: https://github.com/alphapapa/org-ql
-;; Version: 0.4.5
+;; Version: 0.4.6
 ;; Package-Requires: ((emacs "26.1") (dash "2.13") (dash-functional "1.2.0") (f "0.17.2") (org "9.0") (org-super-agenda "1.2-pre") (ov "1.0.6") (peg "0.6") (s "1.12.0") (ts "0.2-pre"))
 ;; Keywords: hypermedia, outlines, Org, agenda
 
@@ -1529,6 +1529,21 @@ element should be a regexp string."
 (defvar peg-errors nil)
 (defvar peg-stack nil)
 
+(defmacro org-ql--peg-parse-string (rules string &optional noerror)
+  "Parse STRING according to RULES.
+If NOERROR is non-nil, push nil resp. t if the parse failed
+resp. succeded instead of signaling an error."
+  ;; Unfortunately, this macro was moved to peg-tests.el, so we copy it here.
+  `(with-temp-buffer
+     (insert ,string)
+     (goto-char (point-min))
+     ,(if noerror
+	  (let ((entry (make-symbol "entry"))
+		(start (caar rules)))
+	    `(peg-parse (entry (or (and ,start `(-- t)) ""))
+			. ,rules))
+	`(peg-parse . ,rules))))
+
 (cl-eval-when (compile load eval)
   ;; This `eval-when' is necessary, otherwise the macro does not define
   ;; the function correctly, apparently because `org-ql-predicates'
@@ -1555,7 +1570,7 @@ Builds the PEG expression using predicates defined in
          "Return query parsed from plain query string INPUT.
 Multiple predicates are combined with BOOLEAN."
          (unless (s-blank-str? input)
-           (let* ((query (peg-parse-string
+           (let* ((query (org-ql--peg-parse-string
                           ((query (+ term
                                      (opt (+ (syntax-class whitespace) (any)))))
                            (term (or (and negation (list positive-term)

org-ql.info

@@ -63,6 +63,7 @@ Functions / Macros
 
 Changelog
 
+* 0.4.6: 046. 
 * 0.4.5: 045. 
 * 0.4.4: 044. 
 * 0.4.3: 043. 
@@ -708,6 +709,7 @@ releases.
 
 * Menu:
 
+* 0.4.6: 046. 
 * 0.4.5: 045. 
 * 0.4.4: 044. 
 * 0.4.3: 043. 
@@ -724,9 +726,22 @@ releases.
 * 0.1: 01. 
 
 
-File: README.info,  Node: 045,  Next: 044,  Up: Changelog
+File: README.info,  Node: 046,  Next: 045,  Up: Changelog
 
-5.1 0.4.5
+5.1 0.4.6
+=========
+
+*Fixed*
+   • Compatibility with newer versions of the peg library, which removed
+     a macro used by this package.  (Fixes #75
+     (https://github.com/alphapapa/org-ql/issues/75).  Thanks to Karl
+     Voit (https://github.com/novoid) and @karlicoss
+     (https://github.com/karlicoss) for reporting.)
+
+
+File: README.info,  Node: 045,  Next: 044,  Prev: 046,  Up: Changelog
+
+5.2 0.4.5
 =========
 
 *Fixed*
@@ -738,7 +753,7 @@ File: README.info,  Node: 045,  Next: 044,  Up: Changelog
 
 File: README.info,  Node: 044,  Next: 043,  Prev: 045,  Up: Changelog
 
-5.2 0.4.4
+5.3 0.4.4
 =========
 
 *Fixed*
@@ -750,7 +765,7 @@ File: README.info,  Node: 044,  Next: 043,  Prev: 045,  Up: Changelog
 
 File: README.info,  Node: 043,  Next: 042,  Prev: 044,  Up: Changelog
 
-5.3 0.4.3
+5.4 0.4.3
 =========
 
 *Fixed*
@@ -760,7 +775,7 @@ File: README.info,  Node: 043,  Next: 042,  Prev: 044,  Up: Changelog
 
 File: README.info,  Node: 042,  Next: 041,  Prev: 043,  Up: Changelog
 
-5.4 0.4.2
+5.5 0.4.2
 =========
 
 *Fixed*
@@ -769,7 +784,7 @@ File: README.info,  Node: 042,  Next: 041,  Prev: 043,  Up: Changelog
 
 File: README.info,  Node: 041,  Next: 04,  Prev: 042,  Up: Changelog
 
-5.5 0.4.1
+5.6 0.4.1
 =========
 
 *Fixed*
@@ -779,7 +794,7 @@ File: README.info,  Node: 041,  Next: 04,  Prev: 042,  Up: Changelog
 
 File: README.info,  Node: 04,  Next: 032,  Prev: 041,  Up: Changelog
 
-5.6 0.4
+5.7 0.4
 =======
 
 _Note:_ The next release, 0.5, may include changes which will require
@@ -860,7 +875,7 @@ as they will be pushed to the master branch when ready.
 
 File: README.info,  Node: 032,  Next: 031,  Prev: 04,  Up: Changelog
 
-5.7 0.3.2
+5.8 0.3.2
 =========
 
 *Fixed*
@@ -873,7 +888,7 @@ File: README.info,  Node: 032,  Next: 031,  Prev: 04,  Up: Changelog
 
 File: README.info,  Node: 031,  Next: 03,  Prev: 032,  Up: Changelog
 
-5.8 0.3.1
+5.9 0.3.1
 =========
 
 *Fixed*
@@ -883,8 +898,8 @@ File: README.info,  Node: 031,  Next: 03,  Prev: 032,  Up: Changelog
 
 File: README.info,  Node: 03,  Next: 023,  Prev: 031,  Up: Changelog
 
-5.9 0.3
+5.10 0.3
-=======
+========
 
 *Added*
    • Alternative, non-sexp query syntax for commands org-ql-search and
@@ -948,7 +963,7 @@ File: README.info,  Node: 03,  Next: 023,  Prev: 031,  Up: Changelog
 
 File: README.info,  Node: 023,  Next: 022,  Prev: 03,  Up: Changelog
 
-5.10 0.2.3
+5.11 0.2.3
 ==========
 
 *Fixed*
@@ -958,7 +973,7 @@ File: README.info,  Node: 023,  Next: 022,  Prev: 03,  Up: Changelog
 
 File: README.info,  Node: 022,  Next: 021,  Prev: 023,  Up: Changelog
 
-5.11 0.2.2
+5.12 0.2.2
 ==========
 
 *Fixed*
@@ -969,7 +984,7 @@ File: README.info,  Node: 022,  Next: 021,  Prev: 023,  Up: Changelog
 
 File: README.info,  Node: 021,  Next: 02,  Prev: 022,  Up: Changelog
 
-5.12 0.2.1
+5.13 0.2.1
 ==========
 
 *Fixed*
@@ -979,7 +994,7 @@ File: README.info,  Node: 021,  Next: 02,  Prev: 022,  Up: Changelog
 
 File: README.info,  Node: 02,  Next: 01,  Prev: 021,  Up: Changelog
 
-5.13 0.2
+5.14 0.2
 ========
 
 *Added*
@@ -1062,7 +1077,7 @@ File: README.info,  Node: 02,  Next: 01,  Prev: 021,  Up: Changelog
 
 File: README.info,  Node: 01,  Prev: 02,  Up: Changelog
 
-5.14 0.1
+5.15 0.1
 ========
 
 First tagged release.
@@ -1123,45 +1138,46 @@ GPLv3
 
 Tag Table:
 Node: Top225
-Node: Contents1477
+Node: Contents1492
-Node: Screenshots1651
+Node: Screenshots1666
-Node: Installation1769
+Node: Installation1784
-Node: Quelpa2407
+Node: Quelpa2422
-Node: Usage2850
+Node: Usage2865
-Node: Commands3199
+Node: Commands3214
-Node: org-ql-search3672
+Node: org-ql-search3687
-Node: helm-org-ql5320
+Node: helm-org-ql5335
-Node: org-ql-view5732
+Node: org-ql-view5747
-Node: org-ql-view-sidebar5930
+Node: org-ql-view-sidebar5945
-Node: org-ql-view-recent-items6286
+Node: org-ql-view-recent-items6301
-Node: org-ql-sparse-tree6770
+Node: org-ql-sparse-tree6785
-Node: Queries7570
+Node: Queries7585
-Node: Non-sexp query syntax8478
+Node: Non-sexp query syntax8493
-Node: General predicates10185
+Node: General predicates10200
-Node: Ancestor/descendant predicates14992
+Node: Ancestor/descendant predicates15007
-Node: Date/time predicates16120
+Node: Date/time predicates16135
-Node: Functions / Macros18775
+Node: Functions / Macros18790
-Node: Agenda-like views19008
+Node: Agenda-like views19023
-Node: Listing / acting-on results20413
+Node: Listing / acting-on results20428
-Node: Changelog25015
+Node: Changelog25030
-Node: 04525619
+Node: 04625649
-Node: 04425966
+Node: 04526037
-Node: 04326323
+Node: 04426396
-Node: 04226518
+Node: 04326753
-Node: 04126677
+Node: 04226948
-Node: 0426916
+Node: 04127107
-Node: 03230847
+Node: 0427346
-Node: 03131224
+Node: 03231277
-Node: 0331419
+Node: 03131654
-Node: 02334392
+Node: 0331849
-Node: 02234620
+Node: 02334824
-Node: 02134888
+Node: 02235052
-Node: 0235087
+Node: 02135320
-Node: 0139122
+Node: 0235519
-Node: Notes39223
+Node: 0139554
-Node: Comparison with Org Agenda searches39385
+Node: Notes39655
-Node: org-sidebar40256
+Node: Comparison with Org Agenda searches39817
-Node: License40535
+Node: org-sidebar40688
+Node: License40967
 
 End Tag Table