#88: TS: F.startWith(), F.moveUntil(), F.dropTo()

changelog.md

@@ -22,7 +22,9 @@ Every parser in CharBundle, FlowBundle and NumberBundle need to be called as a f
 
 It's less funky, but it avoids construction of Parsers at import statement, before writing the first line code.        
 
+### FlowBundle
 
+* `F.startWith(value)`
 
 
 0.5 -> 0.6

documentation/doing-and-todos.md

@@ -1,4 +1,4 @@
-
+Documentation for F.startWith
 
 
 -> release

integration-ts/examples/flow/not.ts

@@ -1,6 +1,3 @@
-
-
-
 import {Streams, F, C,Option, N, SingleParser} from '@robusta/trash'
 import {assertFalse, assertTrue} from '../../assert';
 

integration-ts/examples/flow/startWith-moveUntil-dropTo.ts

@@ -0,0 +1,21 @@
+import {Streams, F, C,Option, N, SingleParser} from '@robusta/trash'
+import {assertFalse, assertTrue} from '../../assert';
+
+const string = 'The quick brown fox jumps over the lazy dog';
+
+
+
+function combinator() {
+    return F.startWith('hello: ')
+        .then(F.moveUntil('brown'))
+        .then(C.string('brown'))
+        .then(F.dropTo(F.eos()));
+}
+
+let stream = Streams.ofString(string);
+let parsing = combinator().parse(stream);
+
+assertFalse(parsing.isAccepted());
+assertTrue(parsing.offset === 2);
+assertTrue(parsing.value.join('') === 'hello: The quick brown');
+

src/lib/parsec/flow-bundle.js

@@ -110,7 +110,7 @@ function sequence() {
     return current;
 }
 
-function startsWith(value) {
+function startWith(value) {
     return nop().thenReturns(value);
 }
 
@@ -149,7 +149,7 @@ export default {
     eos,
     satisfy,
     sequence,
-    startsWith,
+    startWith,
     moveUntil,
     dropTo,
 };

src/test/parsec/flow-bundle-test.js

@@ -39,11 +39,11 @@ export default {
         test.done();
     },
 
-    'expect startsWith to start': function(test) {
+    'expect startWith to start': function(test) {
         const string = ' world';
         const object = 'hello';
         // tests here
-        const parser = F.startsWith(object)
+        const parser = F.startWith(object)
             .then(C.string(' world'))
             .then(F.eos().drop());
         testParser(parser, string);