udhos / basgo

basgo compiles BASIC-lang to Golang. Then 'go build' can translate code to native executable binary.

udhos here 👋

• 🔭 Looking for fun in technology
• 🌱 Learning new languages
• 🤔 What is the next big thing?
• 💬 Willing to chat
• 😄 Happy hacking

basgo's Issues

LOCATE requires SCREEN 0

SCREEN 0 enables terminal features for the command LOCATE.

This LOCATE will NOT work:

20 locate 10,10: ? "test"
30 ?:while i$="":?"hit ENTER to exit":i$=input$(1):?i$:wend

This LOCATE will work:

10 screen 0
20 locate 10,10: ? "test"
30 ?:while i$="":?"hit ENTER to exit":i$=input$(1):?i$:wend

Move runtime library to a package

Many runtime helper functions are currently hard-coded in the code generation. They should be moved to a Go package.

Graphics

• LINE
• PSET
• PRESET
• CIRCLE
• POINT(x,y) http://www.antonis.de/qbebooks/gwbasman/point.html
• PRINT (output normal text)
• PALETTE

Support DATA unquoted strings

10 data 55, this is unquoted string, 66

Support BASIC string with percent sign (%)

This BASIC code:

echo '10 print "%"' | basgo-build > a.go && go run a.go

Produces this invalid Go code:

fmt.Print(`%!`(MISSING))

It is possible to work-around this defect by escaping % with %%:

echo '10 print "%%"' | basgo-build > a.go && go run a.go

Support FILE IO

Support FILE IO

• FILES
• EOF
• OPEN
• CLOSE
• INPUT#
• PRINT#
• RESET
• INPUT$(size, filenum)
• KILL

10 WHILE NOT EOF(1)
20 A$=INPUT$(LOC(1),#1)
30 ...
40 ... Process data returned in A$ ...
50 ...
60 WEND

http://robhagemans.github.io/pcbasic/doc/2.0/#INPUT-file

Support => and =<

=> is another form for >=
=< is another form for <=

Screen text mode

• SCREEN 0
• LOCATE
• POS
• CSRLIN
• CLS
• WIDTH
• VIEW PRINT
• COLOR

RANDOM FILE

• LOC
• FIELD
• LSET
• RSET
• GET
• PUT

Support BASIC string with backtick (`)

This example:

echo '10 print "`"' | basgo-build > a.go && go run a.go

Produces invalid Go code:

fmt.Print(```)

DEFINT, DEFSNG, DEFDBL, DEFSTR

DEFINT, DEFSNG, DEFDBL, DEFSTR

Support non-blocking INKEY$

INKEY$ should be non-blocking.

Rename GOFUNC keyword to _GOFUNC

See this post:

https://sourceforge.net/p/pcbasic/discussion/programs/thread/e68427e82d/#9286

failing to build on debian sid(unstable), amd64(x86_64)

so i try to run:

git clone https://github.com/udhos/basgo
cd basgo
go get -d modernc.org/goyacc
go generate ./basparser
go install ./basgo-build

which ends up with:

Cloning into 'basgo'...
remote: Enumerating objects: 3719, done.
remote: Counting objects: 100% (40/40), done.
remote: Compressing objects: 100% (28/28), done.
remote: Total 3719 (delta 17), reused 27 (delta 10), pack-reused 3679
Receiving objects: 100% (3719/3719), 833.34 KiB | 13.89 MiB/s, done.
Resolving deltas: 100% (2140/2140), done.
invalid escape, or illegal reserved word: precedence: parser.y:133
basparser/generate.go:1: running "goyacc": exit status 1
# github.com/udhos/basgo/basparser
basparser/lex.go:65:7: undefined: TkKeywordRem
basparser/lex.go:67:7: undefined: TkCommentQ
basparser/lex.go:69:7: undefined: TkString
parser.y:5: imported and not used: "fmt" as __yyfmt__
parser.y:7: imported and not used: "fmt"
parser.y:9: imported and not used: "strconv"
parser.y:10: imported and not used: "strings"
parser.y:13: imported and not used: "github.com/udhos/baslib/baslib/file"
basparser/token.go:8:23: undefined: TkNull
basparser/token.go:9:23: undefined: TkIdentifier
basparser/lex.go:69:7: too many errors

COLOR mapping

http://www.antonis.de/qbebooks/gwbasman/screens.html

Codepage 437

https://github.com/robhagemans/pcbasic/blob/master/pcbasic/data/codepages/437.ucp

can tcell emulate text mode?