Monitor current line number while running DWScript?











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I'm using the latest DWScript which has a TdwsDebugger component with it. However I'm not necessarily looking to provide debugging tools to the user - just visually show the current line number.



In the TdwsDebugger component, in its OnDebug event, expr.ScriptPos seems to provide me with this information. But I'm trying to figure out how to make use of this without actually "debugging".



How can I show current DWScript line number without implementing debugging?






delphi dwscript







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  • A SynEdit memo could display the script and highlight the executing line.
    – MartynA
    Nov 11 at 16:49












  • @MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
    – Jerry Dodge
    Nov 11 at 16:58






  • 2




    I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
    – MartynA
    Nov 11 at 18:43












  • Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
    – David Heffernan
    Nov 12 at 7:26















up vote
0
down vote

favorite












I'm using the latest DWScript which has a TdwsDebugger component with it. However I'm not necessarily looking to provide debugging tools to the user - just visually show the current line number.



In the TdwsDebugger component, in its OnDebug event, expr.ScriptPos seems to provide me with this information. But I'm trying to figure out how to make use of this without actually "debugging".



How can I show current DWScript line number without implementing debugging?






delphi dwscript







share|improve this question






















  • A SynEdit memo could display the script and highlight the executing line.
    – MartynA
    Nov 11 at 16:49












  • @MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
    – Jerry Dodge
    Nov 11 at 16:58






  • 2




    I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
    – MartynA
    Nov 11 at 18:43












  • Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
    – David Heffernan
    Nov 12 at 7:26













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm using the latest DWScript which has a TdwsDebugger component with it. However I'm not necessarily looking to provide debugging tools to the user - just visually show the current line number.



In the TdwsDebugger component, in its OnDebug event, expr.ScriptPos seems to provide me with this information. But I'm trying to figure out how to make use of this without actually "debugging".



How can I show current DWScript line number without implementing debugging?






delphi dwscript







share|improve this question













I'm using the latest DWScript which has a TdwsDebugger component with it. However I'm not necessarily looking to provide debugging tools to the user - just visually show the current line number.



In the TdwsDebugger component, in its OnDebug event, expr.ScriptPos seems to provide me with this information. But I'm trying to figure out how to make use of this without actually "debugging".



How can I show current DWScript line number without implementing debugging?






delphi dwscript




delphi dwscript






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 11 at 16:42









Jerry Dodge

15.1k21107260




15.1k21107260












  • A SynEdit memo could display the script and highlight the executing line.
    – MartynA
    Nov 11 at 16:49












  • @MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
    – Jerry Dodge
    Nov 11 at 16:58






  • 2




    I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
    – MartynA
    Nov 11 at 18:43












  • Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
    – David Heffernan
    Nov 12 at 7:26


















  • A SynEdit memo could display the script and highlight the executing line.
    – MartynA
    Nov 11 at 16:49












  • @MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
    – Jerry Dodge
    Nov 11 at 16:58






  • 2




    I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
    – MartynA
    Nov 11 at 18:43












  • Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
    – David Heffernan
    Nov 12 at 7:26
















A SynEdit memo could display the script and highlight the executing line.
– MartynA
Nov 11 at 16:49






A SynEdit memo could display the script and highlight the executing line.
– MartynA
Nov 11 at 16:49














@MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
– Jerry Dodge
Nov 11 at 16:58




@MartynA Indeed, I'm using TSynEdit, but I need access to the current line # from DWS.
– Jerry Dodge
Nov 11 at 16:58




2




2




I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
– MartynA
Nov 11 at 18:43






I took a quick look at the DWScript source at it's not glaringly obvious how to do this, but equally, it's not clear how you could do what you want without actually debugging: after all, if DWS has a free-running execution engine, it wouldn't (and shouldn't, itself) have any concept of a current line. So I'm guessing that this info is only available when it's being driven by a debugger, whose business it is to know how to keep track of the source code statement which corresponds to the currently-executing code. Iyswim ...
– MartynA
Nov 11 at 18:43














Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
– David Heffernan
Nov 12 at 7:26




Generally, it's the act of debugging that allows a program to inspect execution state of another program. So I think you do need to be debugging to know that.
– David Heffernan
Nov 12 at 7:26

















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