ed: start breaking up edParse()

[mknos]

• Unhook commands E, e, f, H, h, P, Q and q from the large regex in edParse(); the idea is to remove the large regex entirely
• Commands E, e and f allow zero or one argument; the other commands require no argument
• None of these commands allows an address prefix, e.g. 1,2P is invalid
• When testing against GNU ed I discovered "f FILENAME" should still print the filename when setting it
• Later the remaining commands can be removed from the large regex if calculateLine() function strips address prefix from $_ at start of edParse()

%perl ed # empty buffer and no saved filename
P     ---> toggle * prompt
*e a.c   ---> start editing a file
197
*H   --->  toggle auto-help
*123d
?
invalid address  ---> error message displays by itself
*H  ---> disable auto-help
*,d   ---> delete all lines
*h  ---> display previous error saved from 123d command
invalid address
*E   ---> reload a.c because I don't want to delete all lines
197
*f  ---> show saved filename
a.c
*f a.c.copy ---> set new filename to write to
a.c.copy
*1,2d ---> delete first two lines
*w ---> write changes to a.c.copy
158
*q

[coveralls]

Pull Request Test Coverage Report for Build 11548331391

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.7%) to 73.069%

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Totals
Change from base Build 11512237477:	-0.7%
Covered Lines:	350
Relevant Lines:	479

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 11548331389

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.7%) to 73.069%

---

Totals
Change from base Build 11512237477:	-0.7%
Covered Lines:	350
Relevant Lines:	479

---

💛 - Coveralls